Having visited and often written about Dutch designer Piet Oudolf’s garden on the High Line in many seasons – May, June, mid-summer and autumn; having blogged about his fabulous Lurie Garden in Chicago; but mostly having photographed and written about the seasons passing in the Oudolf-designed entry border at Toronto Botanical Garden, a few miles from my home, I was beyond excited to finally visit Oudolf Field at Hauser & Wirth Gallery at Dunslade Farm in Somerset, near Bruton. First we walked through the gallery, one of 21 galleries worldwide founded originally in Zurich in 1992 by Iwan and Manuela Wirth along with Manuela’s mother, art patron and collector Ursula Hauser. The Somerset gallery resulted from the renovation of a collection of old farm buildings and is located near the Wirths’ home. Like all their galleries, it features high-profile modern artists such as Americans Richard Jackson, below…
… and Paul McCarthy, whose silicone White Snow Dwarves, below, from the Ursula Hauser collection was displayed near the exit to the garden.
Leaving the gallery which was designed by Argentine-born architect Luis Laplace, visitors pass through a cloister garden designed by Piet Oudolf and featuring the sculpture Lemur Heads by Franz West. Unlike the meadow beyond, this space contains woodlanders and shade-tolerant species.
The small trees in this garden are paper mulberry (Broussonetia papyrifera) with their fuzzy, globular female flowers.
Martagon lilies were just beginning to show colour.
We began with a talk from head gardener Mark Dumbelton, who spoke about the beginnings of the garden and expanded on some of its challenges, mainly around the soil. Indeed, when we visited England was on its way to enduring the hottest June on record since 1884, according to the Royal Meteorological Society, and watering was being done by hand. Behind Mark, I noticed the white inflorescences of….
Ornithogalum ponticum ‘Sochi’, a Russian native bulb that contrasts well with emerging grasses and makes a good cut flower.
Near the gallery is a naturalistic pond surrounded by pink flowering rush (Butomnus umbellatus).
You can see the pond at the left, below, on Piet’s colourful 2012 plan for the wildflower meadow in the Hauser & Wirth catalogue. Spread out over 1.5 acres are seventeen curved, informal planting beds separated by a central gravel path as well as lawn paths between the beds and surrounded by an existing hedge, beyond which Piet planted trees.
He explained his rationale for Oudolf Field in the video below.
With Mark’s talk finished, we were set loose in the meadow. I viewed it through spires of peach foxtail lily (Eremurus), a lovely perennial for early summer whose….
….. tall inflorescences never fail to attract the attention of visitors – and bees! This one looks like the Dutch cultivar Eremurus x isabellinus ‘Romance’.
I was intrigued by the ten turf circles in the central path through the meadow. The path lets visitors stroll from one end to the other, but the playful circles relieve the tedium of this long expanse of purposeful gravel.
They are so unlike Piet’s characteristic naturalistic style, but in fact they point to his pragmatic design knowledge and site adaptability. (Yes, he designs woodlands and knows shrubs and trees as well as his favourite perennials!)
I was reminded in studying these circles of my own visit to Piet and Anja’s garden in Hummelo, Netherlands in 1999 which was designed in part to reflect one of his early Dutch influences, the great designer Mien Ruys (1904-99), the so-called “mother of modernist gardens”. Both his famous hedges and circle gardens, below, were his interpretation of what has been called “contemporary formalism” by his frequent literary collaborator Noel Kingsbury.
I feel very fortunate to have spoken with Piet then, at the beginning of his international fame. I made a photo of him at their outdoor table with spring-flowering shrubs in flower around us. Anja was in their nursery (gone now) with customers, and their little dog sat in a chair nearby.
Back to Oudolf Field, the overwhelming mood here on June 9th was of soft pastel mauves and blues amidst the emerging green of the grasses and summer perennials. Eastern beebalm (Monarda bradburiana) native to the American southeast was in full flower in front of the blue blossoms of narrowleaf bluestar (Amsonia hubrichtii), a south-central American native that turns brilliant chartreuse-gold in autumn. Emerging through the grasses were the big starry globes of star-of-Persia allium (A.cristophii).
I had never seen Monarda bradburiana before spotting it in Piet’s design at the High Line years ago. Like many of the plants he uses – and sometimes introduces to commerce – it has withstood his field testing at Hummelo. This compact species has the good characteristics of the beebalms, including pollinator appeal, without the negative drawbacks, such as powdery mildew.
Early June, following the explosion of spring bulbs and before the summer abundance of flowering perennials is sometimes considered an “in-between” time in the garden. That quiet interlude is helped immensely by the many ornamental onions, and Piet uses them to great advantage in all his gardens, both for their flowers and later seedheads. Below, again, you see Allium cristophii along with the Corten steel edging used to delineate the beds.
After seeing Allium atropurpureum, below, amidst grasses, I came back to Canada and immediately ordered some for my own June garden.
Here is Allium atropurpureum with Amsonia hubrichtii.
… and with Oenothera lindheimeri, i.e. gaura.
Looking back to the gallery through the gardens, including dark-leaved penstemons.
Piet uses various low grasses as matrix plants, including Sporobolus heterolepis, below, and Sesleria autumnalis.
The weather was so warm the day we were there in this record-setting dry June, the assistant gardener was working full-time to water.
While the garden is situated within pre-existing hedges, Piet planted trees on the boundary to contain it further.
The Pavilion, designed by Chilean architect Smiljan Radić and installed in March 2015, sits at the end of Oudolf Field and is intended to “create a dialogue between the gallery complex and pavilion and their relationship with the garden”. Radić says it is “part of a history of small romantic constructions seen in parks or large gardens, the so-called follies.” Built of white, translucent fibreglass with cedar flooring and set atop large quarry stones, visitors can view the garden from within the shell.
Heading into the gallery for lunch, I passed the attractive bar — a work of art in itself.
It was a lunch I would have enjoyed much more if I hadn’t been feeling the beginnings of what turned out to be my first case of Covid in more than 3 years– and the unexpected and sudden end later that night of my wonderful English garden tour. But I was so delighted to have experienced yet another masterpiece in the always-varied oeuvre of Piet Oudolf.
Are you going to Scarborough Fair? Who doesn’t know the next line of the lyrics? Who doesn’t begin to hum that familiar, iconic melody, perhaps recalling where they were in October 1966 when they first heard it sung by two fresh-faced New Yorkers named Paul Simon and Art Garfunkel? One of the joys of reaching my age is that the folk songs of the 1960s still seem fresh and somehow relevant. Especially the ones where traditional herbs play a starring role! And no song elevated herbs like the title song of the third Simon and Garfunkel album, which also included Homeward Bound.
But ‘Parsley, Sage, Rosemary and Thyme‘ debuted with some controversy since the duo listed themselves as songwriters in adapting this traditional 17th – 19th century English folk song (with its many versions) – which would be fine if it was their own arrangement. But it turned out that Paul Simon had first heard English folksinger Martin Carthy (who had first heard it from Ewan MacColl and Peggy Seeger) sing his own version when he was in England and copyrighted a similar arrangement without crediting Carthy, causing a rift that lasted until 2000 when they sang it on stage together. “Worse”, according to one music critic, “it credited Paul and Artie as if the centuries-old tune had emerged entirely from their imaginations.” (Wiki) On the Simon and Garfunkel website, it says, “the duo used vocal overdubs and instrumentation to weave together a traditional song and anti-war protest to stunning effect.” Although not as overtly political as some of the songs I cited in my recent blog Vietnam – Songs of Protest, the song in its long-verse form does sound like the lament of a far-away lover, perhaps a soldier, asking impossible tasks of his sweetheart at home.
SCARBOROUGH FAIR/CANTICLE* traditional, adapted by Paul Simon and Art Garfunkel, after Martin Carthy (1966)
Are you going to Scarborough Fair Parsley, sage, rosemary and thyme Remember me to one who lives there She once was a true love of mine
Tell her to make me a cambric shirt Parsley, sage, rosemary and thyme Without no seam nor needlework Then she’ll be a true love of mine
Tell her to find me an acre of land Parsley, sage, rosemary and thyme Between the salt water and the sea strand Then she’ll be a true love of mine
Tell her to reap it in a sickle of leather Parsley, sage, rosemary and thyme And to gather it all in a bunch of heather Then she’ll be a true love of mine
Are you going to Scarborough Fair Parsley, sage, rosemary and thyme Remember me to one who lives there She once was a true love of mine
*The lyrics above do not include the “Canticle” verses, which are part of the official lyrics listed in their database, but they were the lines sung by the duo 15 years later in front of a half-million adoring fans at the September 1981 benefit concert in Central Park (below) to raise funds for the redevelopment and maintenance of the park. By then, Simon and Garfunkel had broken up and reunited a number of times; even their rehearsals for the concert were fraught with tension. Though they were elementary school classmates who had sung together since high school, initially as the duo Tom and Jerry, lyricist and composer Paul Simon was continually frustrated by the wandering attentions of his partner Artie of the sweet choirboy voice, who had ambitions to be an actor and solo performer. The concert represented a short-lived reunion for Simon and Garfunkel and produced a double platinum live album.
********
The Sages, a Photographic Collection
The Scarborough Fair was a popular medieval market fair held in the town in Yorkshire from mid-August throughout September. Though it went on until the 1700s, it was at its height of popularity in the late 1300s. The use of the herbs in the song lyrics recalls their traditional symbolic meanings: parsley for comfort, sage for strength, rosemary for love and thyme for courage. Salvia comes from the Latin word salvus meaning “healthy”. It refers to the European herb Salvia officinalis, an evergreen (where hardy) sub-shrub native to Mediterranean parts of Europe and the Middle East. Its use as a medicinal and culinary herb is recorded in ancient works by Dioscorides, Pliny and Galen. It is a lovely plant for modern herb gardens, and is a favourite of bees too. (And, of course, one of its principal uses is in our stuffing recipes for turkey.)
Salvia officinalis has a number of fancy-leafed forms, including beautiful ‘Icterina’ (often labelled ‘Aurea Variegata’). I loved seeing it a few years ago (far right) in this exquisite design by Paul Zammit at the Toronto Botanical Garden, along with parsley and calabrichoa, heuchera, hakonechloa, pelaragonium and carex.
Another ancient sage (from the French word sauge for the herb) is Greek sage Salvia fruticosa. I photographed the handful of leaves in the Peloponnese in November, during my botanical tour of Greece with Liberto Dario (Eleftherios Dariotis). There it is used, along with sideritis, for making traditional Greek tea.
Another sage is used for an entirely different ‘medicinal’ purpose. When I was at the Royal Botanic Gardens at Kew some years ago, they had an exhibit devoted to hallucinogenic plants, including ayahuasca (Banisteriopsis caapi). One of the plants was Salvia divinorum, otherwise known by a number of descriptive common names…..
…. including sage of the diviners, ska maría pastora, seer’s sage, yerba de la pastora.
Silver sage (Salvia argentea) comes from southern Europe and northern Africa. A biennial, it is better known for its spectacular, silvery leaves that form as a rosette the first year…..
…. than for its white flowers the following year.
Over the past few decades, I’ve photographed salvia species, hybrids and cultivars around the world – admittedly just a drop in the bucket of some 900 species worldwide. And I’ve grown lots of them in my own gardens, both in the city where the meadow sage Salvia nemorosa ‘Mainacht’ (‘May Night’) with its deep-blue spikes graces my pollinator island, attracting lots of bees…….
…. and in the containers on my sundeck at our cottage overlooking Lake Muskoka. There salvias and agastaches are my principal container plants intended to lure ruby-throated hummingbirds each summer. I don’t have a nectar feeder for these graceful little birds, preferring to give them organic sweeteners. (That’s sacred basil on the far right, Ocimum tenuiflorum – a superb bee plant).
The very best lures are the big sages in my hand…..
….. especially the champion – Salvia guaranitica ‘Black and Blooms’ (also ‘Black and Blue’ in previous summers).
This lusty big Argentine sage is simply the best for bringing in hummingbirds.
Last year for the first time I tried Salvia ‘Amistad’ bred by Argentina’s Rolando Uría, and it was popular with the hummingbirds too.
Salvia ‘Wendy’s Wish’ was a distant third, but still attracted its share of hummers
Salvia microphylla ‘Hot Lips’ is so colourful and a hummingbird favourite.
I did an experimental planting of Salvia ‘Big Swing’ (Salvia macrophylla x S. sagittata) last season. Although the hummingbirds visited it now and again, its strange flowering habit (at least in a container) worked against it.
Annual ‘Mystic Spires’ salvia attracted hummingbirds, too, but not if ‘Black and Blooms’ was in flower.
In my naturalistic borders at the cottage, Salvia nemorosa ‘Mainacht’ consorts with a number of self-sown wildflowers (which we now call exotic invasives…..) including musk mallow (Malva moschata).
If you visit the Royal Botanical Gardens at Kew outside London in autumn, be sure to find the stunning salvia border there. This was October 25, 2014.
It was at Kew that I first saw Salvia confertiflora from Brazil…..
….. and luscious, deep-red scarlet sage, Salvia splendens ‘Van Houtte’…..
….. and pretty hybrids like ‘Phyllis Fancy’ below, discovered at the University of California Santa Cruz Arboretum and named for Phyllis Norris.
Chanticleer Garden outside Philadelphia in Wayne, PA is my favourite public garden in the United States. I wrote a 2-part blog after my June 2014 visit. Its many gardens change each year in the most creative way, but I think my favourite scene was this confection featuring the deep-indigo spikes of Salvia nemorosa ‘Caradonna’ (from Zillmer Nursery in Germany), acting as dark vertical brushstrokes in a riot of cottage garden colour.
The Toronto Botanical Garden features its share of sages. Meadow sage, of course, is a prime player in the various June planting schemes. This is white Salvia nemorosa ‘Snow Hill’ (‘Schneehugel’, an Ernst Pagels introduction) with alliums, catmint, lady’s mantle and peonies.
Catmint, of course, is a beautiful partner for meadow sages, like Nepeta ‘Walker’s Low’, here with Salvia x sylvestris ‘Blauhugel’ (‘Blue Hill’), another Ernst Pagels introduction, and a splash of lady’s mantle (Alchemilla mollis).
In the Piet Oudolf-designed Entry Border at the TBG (I wrote a comprehensive 2-part blog on his design for this border), he incorporated his own introduction, Salvia nemorosa ‘Amethyst’, placing it near a wine-red sanguisorba.
His pretty purple-and-white hybrid sage Salvia ‘Madeline’ is also featured in the border.
And at the Royal Botanical Garden in Burlington, Ontario not far from Toronto, I loved this combination of Piet’s introduction Salvia verticillata ‘Purple Rain’ with creamy-yellow Achillea ‘Anthea’.
When I visited Chicago Botanic Garden in 2018, I was impressed with this mass planting of sky-blue bog sage (Salvia uliginosa)…..
Years earlier, I had been wowed by a themed garden at Chicago Botanic that featured bright-blue gentian sage, Salvia patens, with lots of gloriosa daisies (Rudbeckia hirta).
Speaking of gentian sage, this was one of the happiest combinations ever – a street planting at Vancouver’s Van Dusen Botanical Garden featuring Salvia patens ‘Cambridge Blue’ with Zinnia angustifolia ‘Profusion Orange’, purple Verbena rigida and fuzzy white bunny tail grass (Lagurus ovatus). Isn’t it lovely?
At Lady Bird Wildflower Center in Austin, Texas a few years ago, I was impressed by the meadow plantings of native mealycup sage (Salvia farinacea), a species that has become a popular bedding and container annual in colder regions.
There I was intrigued to see it looking so beautiful with native Texas yellowstar (Lindheimera texana), left, and was reminded of how effective it is with any yellow flowers, like the gloriosa daisies (Rudbeckia hirta) at right.
It’s such an easy sage to use: here it is with a rollicking sea of orange and yellow celosias at the Ottawa Experimental Farm one summer.
And this trio at the Montreal Botanical Garden was impressive: Salvia farinacea ‘Fairy Queen’ and ‘Evolution’ with a massed planting of chartreuse sweet potato vine (Ipomoea batatas ‘Illusion Emerald Lace’).
This formal knot garden at the New York Botanical Garden was enlivened by a mix of annual sage (Salvia viridis) in pink and purple popping up in the middle of the knots.
In spring, New York’s High Line features early-flowering Salvia ‘Pink Delight’ and ‘Rhapsody in Blue’ (both Piet Oudolf hybrid sages) mixed with amsonias. I blogged about that May 2012 visit too.
What else? So many….. When I was in Tucson, Arizona seven years ago, I drove over the mountain pass to the fabulous Arizona-Sonora Desert Museum. In its wonderful garden, honey bees were busy gathering nectar from native Salvia apiana. Guess what its Latin name means? Yes, “bee sage”.
At Idaho Botanic Garden a few Septembers ago, native rose sage Salvia pachyphylla was in flower. And of course, I blogged about that lovely visit as well.
At Santa Barbara Botanical Garden, the appropriately named California hummingbird sage (Salvia spathacea) was, naturally, attracting California hummingbirds! This is the sweet little Anna’s hummingbird.
While at Santa Barbara Botanical Garden, I also saw Santa Rosa Island sage (Salvia brandeegii)…..
….. lovely, silvery Salvia leucophylla ‘Amethyst Bluff’, a selection of purple sage by Carol Bornstein.
….. or this bumble bee foraging on annual Salvia coccinea ‘Coral Nymph’ on my own cottage deck.
Hmm. I think that’s enough sage wisdom for one blog, don’t you? Except…. what about poor rosemary? It’s having a little identity crisis at the moment because it was known as Rosmarinus officinalis ever since Linnaeus assigned names back in 1753, but then came 2017 and one of those gene-sequencing revelations that turned taxonomy on its head.
Alas, it seems that rosemary is just a needle-leafed sage, now called Salvia rosmarinus. But sssshhh… don’t tell Simon and Garfunkel.
It was with great joy that I stepped into Chicago’s Lurie Garden last August. It didn’t matter that my companions numbered in the hundreds (garden communicators from all over North America at the annual Gardencomm symposium) – as long as they didn’t get in my shot! And it was the perfect time to visit, with the Lurie evoking in a romantic, chaotic way the wildflower-spangled prairie that once stretched across sixty one percent of Illinois (21.6 million acres), before the arrival in the 1830s of homesteaders and the John Deere tractor that broke up the tallgrass sod to plant beans and barley. No, the Lurie Garden is not a prairie recreation, and it’s certainly not ‘country’, given that it occupies five leafy acres of 24.5-acre Millennium Park in the heart of downtown, framed by some of the tallest skyscrapers in North America.
But when you see the artful tumble of some of the tallgrass prairie’s iconic natives, such as spiky rattlesnake master (Eryngium yuccifolium)….
…. and towering yellow compass plant (Silphium laciniatum), its common name alluding to the belief of pioneers that its leaves always pointed north and south,…..
…… mixed with other perennials and lush ornamental grasses in the Meadow section of the garden nearest Monroe Street, it certainly feels like walking into an August prairie in the middle of the city.
It was spring 1914 when poet Carl Sandburg wrote his ode to Chicago. Hog Butcher for the World, Tool Maker, Stacker of Wheat, Player with Railroads and the Nation’s Freight Handler; Stormy, husky, brawling, City of the Big Shoulders
And it was the last line of that first verse and the nickname it lent Chicago – City of Big Shoulders – that landscape architects Gustafson Guthrie Nichol lit on in the late 1990s when they conceptualized the space that would become the Lurie Garden. Those “big shoulders” became the 15-foot high shoulder hedge, an L-shaped living wall separating the garden from the busy footpath to the Frank Gehry-designed Jay Pritzker Music Pavilion (see the steel roof angles) and Great Lawn in the space beyond.
Comprised of five cultivars of arborvitae (Thuja occidentalis) and hedge-friendly hornbeam (Carpinus betulus ‘Fastigiata’) and European beech (Fagus sylvatica), the shoulder hedge also echoes those other big shoulders of the towering skyscrapers behind Millennium Park. By the way, that’s a cultivar of white-flowered prairie native Culver’s root (Veronicastrum virginicum) in the foreground with a purple cloud of sea lavender (Limonium latifolium) nearby.
For Dutch superstar designer Piet Oudolf, the Lurie plant design was his first commission in the U.S. and his first big public garden, though later he would design the plantings for the High Line in New York (which I blogged about in June 2014), our own entry border at the Toronto Botanical Garden (which I blogged about in March 2017 including the intricate design nuts-and-bolts) and the Delaware Botanic Gardens at Pepper Creek (opening this September), among others. When he became the perennial plant designer of the winning Lurie design team under Seattle-based landscape architects Gustafson Guthrie Nichol Ltd. (GGN) at the turn of the millennium and had his plant list prepared, he travelled to Chicago to meet with nurseryman Roy Diblik, owner of Northwind Perennial Farm in nearby Burlington, Wisconsin. Roy had already read Gardening with Grasses, the book Piet co-authored with Michael King in 1998, one of many design books he has written; it astonished him. As he said in a 2016 interview on The Native Plant Podcast, “It was the first book I’ve ever seen about grasses intermingled with other plants. This book showed communities, how to interplant, playfulness. It was wonderful.”
Roy Diblik, below left, recalls their first meeting in the biographical Oudolf Hummelo – A Journey Through a Plantsman’s Life (2015 ) by Piet Oudolf and Noel Kingsbury: “I remember how he rolled out a copy of a plan for the Lurie Garden on a workbench. I could see immediately that there had never been anything like this before in the Midwest. We went through the plants, what would work, and not work. He got me involved in producing the plants – 28,000 plants, with no substitutes. We subcontracted the growing of the easier plants and I did the more difficult ones myself.” For his part, Piet had never seen a prairie before and Roy loved the prairie and its plants deeply, so he took his Dutch visitor to visit the Schulenberg Prairie at the Morton Arboretum, a very moving experience for Piet. So it was natural that they became more than design collaborators; they became close friends. The professional collaboration continues today, since every two years the Lurie invites them and the landscape architects to visit the garden, inspect the plants and assess how they’re performing……
Roy Diblik, left, and Piet Oudolf, right. Photo courtesy of Laura Ekasetya
…… in a consultation that includes Director/Head Horticulturist Laura Ekasetya, below, part of the formidable all-woman team at the Lurie.
To place the Lurie in context, you can see below in this amazing July image by Devon Loerop Media the Seam, the Light Plate and Dark Plate and beyond the garden, people sitting on the Great Lawn enjoying a performance at the Pritzker Pavilion under the airy overhead trellis containing the sound system.
Devon Loerop Media courtesy of Lurie Garden
Looking the other way in another image by Devon Loerop Media, you see Renzo Piano’s beautiful Modern Wing of the Chicago Art Institute, whose windows look directly onto the undulating garden, its sloping, prairie-like meadow and gardens and trees like some ever-changing work of modern art.
Devon Loerop Media courtesy of Lurie Garden
On a hot day last August, just beyond the bee-buzzy cloud of white calamint (Calamintha nepeta), there were young visitors cooling their feet in the water course, just out of view, that bisects the Lurie as part of the “Seam”, GGN’s evocative separation of the garden into the Light and Dark Plates. The Light Plate, left, is the sunny prairie-like side; the Dark Plate features a more garden-inspired design with many plants growing in dappled shade under black locust trees (Robinia pseudoacacia). In between on the Dark Plate side is an area called the Transition Zone, with tall plants.
The water course is part of stepped pools underlying the broad ipe wood walkway that carries visitors through the garden. But what exactly did the landscape architects intend to evoke with the Seam? Most of the waders would not understand that this is a sophisticated means of connecting the Lurie with the underlying landscape.
Not the immense parking garage immediately below – since Millennium Park is a massive green roof, the largest in the world. Not the ghost of the old Illinois Central Railway tracks below. Rather, it evokes the swampy marshland in the delta of the Chicago River that once led into Lake Michigan just a few blocks away, atop which young Chicago grew in the early 19th century. By 1900, the river would be reversed to flow ultimately into the Mississippi River, but it was a muddy beginning for the young city that necessitated a gigantic engineering project and wooden walkways to ensure that the big-shouldered city and its citizens did not sink into the mire. That’s the history conjured up by The Seam.
The Raising of Chicago was undertaken after outbreaks of cholera in 1854 and ’59 killed more than two thousand people. It involved the use of jackscrews to lift entire streets of buildings six feet above ground. Below is an artist’s 1856 rendering of the plan to raise Lake Street. Connecting historic events like this with a contemporary landscape like the Lurie is perhaps the finest interpretation of capturing a ‘sense of place’. Read more about Gustafson Guthrie Nichol’s design rationale for the Light and Dark Plates and the Seam here.
Image – Chicago Historic Society – Edward Mendel
The plants for the wildish front section of the Lurie may evoke the prairie, but Piet prefers to call this the Meadow. As Noel Kingsburgy wrote in Oudolf Hummelo: “At the time Piet created the Lurie Garden, it represented a new level of complexity and sophistication in his design. It drew on a number of elements that had proved successful elsewhere, but it also contained several innovations. The bulk of the planting is formed of like plants clumped together, although there is a small area of innovative intermingled planting at the southern end, known as The Meadow, where species are mixed in a truly naturalistic fashion. Its matrix of ornamental grasses including the native Sporobolus heterolepis, is broken at intervals by a number of perennial species that rise up above the grasses….” The matrix system would inspire Piet a few years later in his design for the High Line. Many of the plants in the Meadow are native prairie plants, but not all. The lovely white coneflower below is Echinacea ‘Virgin’, one of Piet Oudolf’s own introductions.
Grasses are chosen for their hardiness, beauty and architectural durability, regardless of whether they’re native species, non-natives or selected cultivars. Here is the Meadow’s matrix grass, the lovely tallgrass native prairie dropseed (Sporobolus heterolepis).
Award-winning ‘Blonde Ambition’ blue grama (Bouteloua gracilis), below, has striking pennant-like flowers and grassy, blue-gray foliage.
Autumn moor grass (Sesleria autumnalis), on the other hand, is a European grass that Piet knew well from previous designs. In June, it’s the soft, chartreuse framework for the Lurie’s spectacular purple-blue “salvia river”, and in summer, it enhances purple coneflowers and cloudlike, white-flowered prairie spurge (Euphorbia corollata).
Here is autumn moor grass nestling the tallgrass prairie forb wild petunia (Ruellia humilis).
Grasses also frame another typical prairie denizen, nodding onion (Allium cernuum).
‘Karl Foerster’ feather reed grass (Calamagrostis x acutiflora) may be the most commonly-seen ornamental grass in North America now, but it creates the perfect vertical accent below. It is named for the renowned Germany nurseryman and plant breeder Karl Foerster (1874-1970) who in turn was the teacher of Piet’s own friend, the late nurseryman and plant breeder Ernst Pagels (1913-2007). Pagels introduced many plants we see in Oudolf gardens, including Salvia nemorosa ‘Amethyst’ ‘Blauhügel’ and other sages; Phlomis tuberosa ‘Amazone’; Veronicastrum virginicum ‘Diane; Astilbe chinensis var. taquetii ‘Purpurlanze’; and, in honour of Piet, award-winning Stachys officinalis ‘Hummelo’.
One of the paradoxes of the surge in popularity of American native plants and their selections is that much of the work was done in Germany and Holland. ‘Shenandoah’ switch grass (Panicum virgatum), below, with its rich red foliage, was selected by another of Piet’s friends, German plantsman Hans Simon. Here it is with the ferny foliage of Arkansas bluestar (Amsonia hubrichtii) and Agastache ‘Blue Fortune’, a superb hybrid of North American anise hyssop (Agastache foeniculum) and Korean Agastache rugosa, bred and selected by Gert Fortgens at Rotterdam’s Arboretum Trompenberg.
The ‘Blue Fortune’ anise hyssop was attracting hordes of monarch butterflies the day I was there, and the photographers in the crowd were vying for the perfect shot.
Pennisetum alopecuroides ‘Cassian’ is an excellent, hardy fountain grass named for Piet’s friend, Cassian Schmidt, director of the renowned German garden Hermannshof.
A signature plant in Piet’s gardens is airy sea lavender (Limonium latifolium), seen here with a tiny sprig of prairie spurge (Euphorbia corollata).
Nearby was a drift of early-blooming pale purple coneflower (Echinacea pallida), their pink flowers now bronzed with age. Seedheads and senescing plants, of course, are a vital part of the four-season design that Piet has promoted in his gardens, adding structure to plantings and an evocative, almost metaphorically human sense of “a life well lived” . As he told a New York Times writer more than a decade ago: “You accept death. You don’t take the plants out, because they still look good. And brown is also a color.”
The seedheads of Allium lusitanicum ‘Summer Beauty’, a Roy Diblik plant introduction, still looked wonderful, especially framing Echinacea ‘Pixie Meadowbrite’.
Wild quinine (Parthenium integrifolium) is a tallgrass prairie perennial whose flowerheads were slowly turning tawny.
Under the trees in the Dark Plate, the brown seedheads of Phlomis tuberosa ‘Amazone’ added a strong note of verticality.
Touring visitors through the Lurie, as Laura Ekasetya was doing here, often means explaining Piet’s philosophy, since people don’t always appreciate the beauty of plants once the flowers fade. Birds do, of course, and seeds of many perennials offer nourishment to songbirds long after summer ends.
And even without their purple flowers, the tall spikes of prairie blazing star (Liatris pycnostachya) are simply spectacular, and will be prominent well into winter.
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But the liatris season is long, and the knobby flowers of rough blazing star (Liatris aspera) were just opening……
….. bringing native insects to nectar. This is the two-spotted longhorn bee.
The Lurie attracts a diverse roster of insects to forage on the flowers. Native skullcap (Scutellaria incana) was being visited by a lumbering carpenter bee (Xylocopa virginica), while…..
….. tall ‘Gateway’ Joe Pye weed (Eutrochium maculatum) was entertaining monarchs, as was….
….. the ‘Diane’ Culver’s root (Veronicastrum virginicum).
In fact, monarch butterflies were even mating on the common milkweed (Asclepias syriaca) that had been left in a few spots in the garden to ensure enough food for the monarch’s larval caterpillars.
Although I’m a prairie girl at heart, I finally dragged myself away from the sunny Light Plate into the shade-dappled Dark Plate. Here, the planting is less meadow-like and more refined, much as you would find in garden borders.
And I loved the chickadees that were flitting through the trees. Here’s a little taste….
The perennials in this section appreciate richer soil and a little more moisture, too. Below is Heuchera villosa ‘Autumn Bride’ with Aruncus ‘Horatio’ having formed seedheads behind. Pink Japanese anemones are at the rear.
I could smell the perfume of the summer phlox (Phlox paniculata) even before I arrived at the spot where it was flowering. In every possible shade of pink, it was paired perfectly with Joe Pye weed (Eutrochium spp.).
Great blue lobelia (Lobelia siphilitica) made a good companion to the phlox. Summer phlox is one of those native North American perennials that enjoyed early cosmopolitan success in the 18th century when plants were collected in the “new world” and shipped to Europe. It was John Bartram who found it growing near Pennsylvania’s Brandywine River in 1732, and sent it to England, where it soon found its way into estate borders and cottage gardens throughout Europe. Though it is occasionally susceptible to disease (and voracious groundhogs in my own Toronto garden, where I haven’t seen a bloom in years), it is such a lovely mid-late summer perennial and romantically ebullient and perfumed.
In fact, it was in this part of the garden where Piet Oudolf and Roy Diblik noticed a phlox, below, that had seeded from the original planting of a named variety. It was clear pink and exhibited excellent characteristics. After watching it for a few years, they had it dug up in 2016 and taken to Brent Horvath of Instrinsic Perennial Gardens (IPG) in nearby Hebron, one of the midwest’s finest wholesale perennial growers. In honour of the Lurie’s Director and Head Horticulturist, Piet named it ‘Sweet Laura.’ And as Laura Ekasetya says, “He is including this plant in the new edition of (his book) Dream Plants for the Natural Garden.” IPG propagated cuttings in 2017 and 2018 and it is now sold locally and at the Lurie Garden’s May plant sale.
Courtesy Intrinsic Perennial Garden
As I was reluctantly leaving the garden to return to the symposium at the over-air-conditioned convention centre, I saw a honey bee landing on Geranium soboliferum, Japanese cranebill, below. It cheered me up as I was planning to return on my own later that day to meet someone special at the Lurie.
IT WAS 2011 WHEN I proposed a story on urban beekeeping to Organic Gardening magazine, which has sadly since folded. The story featured three expert beekeepers and their shared wisdom about the ancient art and science of beekeeping. One was Michael Thompson, beekeeper for the hives on the rooftop of Chicago City Hall and also the Lurie Garden. But beekeeping (read this Edible Chicago article on Michael and his history with honey bees) and being co-founder and director of the Chicago Honey Co-op is just one of Michael’s journeys in life; he also works with urban agriculture (including an urban orchard project), especially in parts of the city where organically-grown vegetables and neighbourhood involvement are a departure from the norm. When I was making my plans to travel to Chicago, I contacted Michael to ask if there was a chance we could meet in person. We agreed on a time and I made my way back to the Lurie that afternoon. After arriving on his bike in sweltering temperatures, Michael donned his veil and began inspecting the hives.
Brood and honey looked good for August, a product of the Lurie’s abundance of nectar- and pollen-rich plants (not to mention urban street trees throughout Grant Park and downtown).
Among the plants I’d noticed earlier with honey bees were Japanese anemones (pollen only, which bumble bees also collect)….
…. Knautia macedonica, which yields magenta-pink pollen…..
…. Culver’s root (Veronicastrum virginicum ‘Diane’), which is a superb plant for native pollinators too….
…. calamint (Nepeta calamintha), which honey bees adore…..
…. and mountain mint (Pycnanthemum muticum), which attracts honey bees and other pollinators in droves.
But apart from seeing the beehive inspection, I wanted to meet Michael in the flesh here at the Lurie, to cement one more personal connection in this wonderful world of flora that we all cherish.
And after receiving my gift of Chicago Co-op honey….
…I went back into the Lurie, now comparatively empty of people. And I thought of the friends I was with on this symposium, people I’ve come to know in the thirty years I’ve been immersed in gardens, like Helen Battersby, who co-produces with her sister an award-winning blog called Toronto Gardens…..
….. and Theresa Forte, who writes a column for the St. Catharine’s Standard (and is a proud grandmother like me). Behind her is Portlander Kate Bryant, who generously drove me around her fair city visiting gardens last year, not long after our Lurie visit.
I’d shared a Lurie stone wall at lunch with horticulturist Anne Marie Van Nest, a longtime friend who gardens at Niagara Parks and Quebec’s Larry Hodgson, who writes, photographs and leads tours en Français to gardens throughout the world.
I thought of the people who grow all the plants and tend all the gardens, like Intrinsic’s Brent Horvath and his partner, Chicago Botanic Garden’s Lisa Hilgenberg, who manages the edible gardens there. I would meet them at the symposium dinner later that week.
And I thought of people directly related to this very garden’s design ethos, and a fun dinner in 2016 hosted by the New Perennialist himself, Tony Spencer, standing left, with me, plantsman David Leeman, special guest Roy Diblik and nurseryman Jeff Mason of Mason House Gardens. Tony also began the Facebook group Dutch Dreams, and has become a good friend of Piet Oudolf over the years.
Those are just a few of the many hundreds of people I’ve met and become friends with in three decades. As I walked through the Meadow again, looking up at the compass plants giving the nearby skyscrapers a run for their money,……
….. I thought about spring 1999, when I’d visited Hummelo and photographed Piet Oudolf on the eve of the new millennium. He would begin the Lurie design process just a year or so later. And of this garden, about which he said in a Tom Rossiter video recently, “The Lurie Garden created a moment in my life where I stepped over a threshold and came into another idea of design. For sure it has affected my work. And it has done a lot of good in my personal experience and it’s done a lot of good in my designs, in particular to touch people’s emotions.”
If there are big shoulders in cities, there are big shouldered people in the world of gardening and design as well. We stand on their shoulders and learn from them, and they sometimes learn from us. It is a rarified world rendered infinitely interesting by the changing of the seasons and by the way it touches our emotions. And we are all so very fortunate to live (and work) here.
Happy 15th anniversary, Lurie Gardens and Millennium Park.
*********
Please leave a comment. I’d love to know what you think of the Lurie, too!
Following on part one, this is the second part of my exploration of the Piet Oudolf-designed entry border at the Toronto Botanical Garden.
The plant design of the entry walk garden at Toronto Botanical Garden is much more exacting than the drifts and blocks in a conventional border. If you think of a broad meadow like this as a painting, the effect of each series of neighbouring brush strokes is known in advance. For these plants are like children to Piet Oudolf, many grown and observed for decades in his own Dutch garden, many even bred by him or fellow nurserymen in the Netherlands and Germany.
Designed Combinations
Let’s skip around Piet’s original planting design and have a look at twelve of the combinations he planned, as they manifested themselves over the past decade. It’s important to note that all these plants fulfill Piet’s mandate that plants must be: relatively adaptable to soil, i.e. neither too wet nor too dry; vigorous enough to grow without fertilizers or pesticides; strong enough to stand without staking (as with the lovely single peonies in Part One, in contrast to floppy double peonies). Plants should be resilient and long-lived. His plant combinations are not dictated by colour, but by form; however, you’ll see some lovely colour pairings in the examples below.
1.Willowleaf bluestar (Amsonia tabernaemontana var. salicifolia) and ‘Purple Smoke’ false indigo (Baptisia australis).
This is one of the most stable and effective pairings in the entry garden.
Year after year, these two North American natives (technically, the baptisia selection is called a “nativar”, i.e. native cultivar) emerge and come into flower at exactly the same time. They seem to be on the very same wavelength, and equally lovely. And the amsonia, of course, takes on golden-yellow hues in autumn.
2. ‘Roma’ masterwort (Astrantia major) and ‘Rose Clair’ geranium (G. x oxonianum).
These two late-spring perennials share a pleasing rosy hue and a soft presence.
Dark-red ‘Claret’ astrantia is another Piet Oudolf breeding selection, a seedling (like his ‘Roma’ above), of ‘Ruby Wedding’. It looks lovely here in a romantic June combination with indigo-blue ‘Mainacht’ sage. To the left is ornamental clover (Trifolium rubens), to the right is drumstick allium (A. sphaerocephalon).
I’ll talk a little more about the wonderful burnets in Special Plants below, but this is a good early-summer combination: with zingy, dark-red Alaskan burnet (Sanguisorba menzisii) at rear, violet-mauve Salvia nemorosa ‘Amethyst’ in front, and a lttle spiderwort (Trandescantia) too. If you’re a bee-lover, the meadow sages are fabulous lures.
5. ‘Concord Grape’ spiderwort (Tradescantia x andersoniana) & Knautia macedonica.
Speaking of bees, both violet-purple spiderwort and dark-red knautia are excellent bee plants, but I do love these jewel-box colours together in early summer. The light-purple cranesbill is Geranium ‘Spinners’.
Here are two of Piet’s German heritage plants growing side by side: Ernst Pagel’s lovely Stachys officinalis ‘Hummelo’ and the fountain grass named for Cassian Schmidt, director of Hermannshof.
Catmints are workhorses: long-flowering, great for bees, hardy, with tidy, aromatic foliage. They do get big in time, but that just means more plants after dividing. Here it is as the switch grass (a warm season grass) is just getting going in early summer. It’s called ‘Cloud Nine’ for its impressive height, to 7 feet (2.1 metre).
When the entry walk garden first came into bloom in 2008, I was surprised to see a few daylilies in it. I suppose I thought that with Piet’s focus on the importance of good foliage, daylilies would simply not make the cut, given the tendency of their leaves to go brown and look straggly in late summer. But surprise! There are a few old-fashioned daylilies, including pale-yellow ‘Gentle Shepherd’ which makes a good companion to the fuchsia-pink flowers of spectacular ‘Purpurlanze’ astilbe and is considered a seasonal “filler” plant (see Scatter Plants and Fillers below), with other perennials emerging to carry on the late summer show.
Yes, Piet Oudolf uses hostas! (Shhh…don’t tell anyone….) Actually, the big ‘Blue Angel’ hostas here are favourites of Piet’s for their beautiful leaf texture. They act as anchors (there’s one at the other end, too) for this long border. And when they’re flowering, there are always bees buzzing around the white blooms. I like the way the tall white burnet behind echoes the hosta flowers. These hostas also undergo their own foliage transformation, turning gold in autumn. The ‘Firedance’ mountain fleece or bistort (Piet’s introduction) is more compact than ‘Firetail’, and a good, long-flowering perennial.
A honey bee works the flowers of Hosta sieboldiana ‘Blue Angel’.
This is one of my favourite combinations in the entire entry border: the yin-yang combination of the assertive, spiky rattlesnake master and the soft, hazy spires of Russian sage. Peeking through behind are more pink ‘Purpurlanze’ astilbe and ‘Gentle Shepherd’ daylilies.
11. Sea lavender (Limonium latifolium) and dense blazing star (Liatris spicata)
In writing in Hummelo: A Journey Through a Plantsman’s Life about their collaboration on the 1999 book Designing with Plants, Noel Kingsbury refers to a section of the earlier book called Moods. “We outlined the impact of the more subtle and hard-to-pin-down aspects of planting design, such as the play of light, movement, harmony, control and ‘mysticism’. I am still not 100 percent sure I know what we meant by this category, apart from a lot of mist in the pictures, but it looked good and sounded good.” For me, the vignette below touches a little on mysticism. There’s something about this combination of forms — the solid echinaceas, the constellation of spent knautia seedheads, the regimental spikes of blazing star, the soft cloud of sea lavender, the blades of grass — that seems almost dream-like. This is my childhood meadow idealized.
Once in a while, you might see a story (usually British) that refers to Piet Oudolf and the other practitioners of the so-called “Dutch Wave” of naturalistic design as focusing entirely on perennials to the exclusion of woody shrubs and trees. If you don’t know Piet’s work with trees and shrubs (including roses) at The High Line and elsewhere, you won’t see the fallacy in that line of thought. Though the entry garden at the TBG is primarily a perennial meadow, there are shrubs and vines in a few places, including lilac (Syringa), Kousa dogwood (Cornus kousa), witch hazel (Hamamelis x intermedia), chaste-tree (Vitex agnus-castus) and purple-leaved smoke bush (Cotinus coggygria ‘Royal Purple’). I love the vignette, below, with the burgundy-red foliage and smoky fruit of the smoke bush and the Phlomis tuberosa ‘Amazone’ with the tall alliums (likely ‘Gladiator’) and a sprinkle of white foxglove penstemon (P. digitalis), which is not on Piet’s plan but is now in the border and quite lovely in early summer.
Scatter Plants and Fillers
In the book Hummelo: A Journey Through a Plantsman’s Life, by Piet Oudolf and Noel Kingsbury (The Monacelli Press, 2015), there are pages devoted to Piet’s use of “scatter plants” and “fillers”. Scatter plants are defined as “individuals or very small groupings of plants interspersed among blocks of plant varieties or through a matrix planting, breaking up the regularity of the pattern; their distribution is generally quasi-random.” Scatter plants can act as links in a border, even unifying it, adding contrasting splashes of colour, like the orange-red Helenium autumnale ‘Rubinzwerg’, below…..
…or a pop of colour that later disappears, like the Oriental poppies in the entry garden that later go dormant.
Fillers are plants whose interest lasts less than three months; though they may have good foliage, they don’t have the structure normally associated with an Oudolf design. They’re good for “filling gaps earlier in the year.” Knautia macedonica does this and cranesbills or perennial geraniums do, too. As Piet Oudolf and Noel Kingsbury wrote in Designing with Plants (Timber Press, 1999), “Think how quickly the neat hemispheres of a hardy geranium turn into a sprawling mass of collapsed stems once the flowers have died.” Yet, when in bloom, they give a starry effect, like the white form of mourning widow cranesbill (Geranium phaeum ‘Album’), below, twinkling among the opening blossoms of Paeonia ‘Bowl of Beauty’.
Grasses
If there’s a hallmark group of plants that defines a Piet Oudolf design, it is ornamental grasses. In fact, he and Anja believed so strongly in their value in gardens that they held an annual Grass Days at their garden in Hummelo. And the 1998 book Gardening with Grasses, co-written by Michael King and Piet Oudolf, advanced that respect. Among the grasses featured in the entry garden are:
1.‘Skyracer’ moor grass (Molinia arundinacea), shown here with ‘Gateway’ Joe Pye Weed (Eutrochium maculatum). This grass is the perfect example of Piet’s use of plants that act as “screens and curtains”. In Designing with Plants, they’re described as “mostly air, and their loose growth creates another perspective as you look through them to the plants growing behind.” This rosy pairing, incidentally, also says ‘mysticism’ to me.
2.‘Cassian’ fountain grass (Pennisetum alopecuroides), here with ‘FIretail’ red bistort (Persicaria amplexicaulis)
3. Korean feather grass (Calamagrostis brachytricha). Lovely and hardy as it is, its plumes gorgeous in late summer and autumn, this grass did exhibit a tendency to seed around in the entry garden at TBG and had to be watched carefully.
Here is Korean feather grass in winter.
4.Tufted hair grass (Deschampsia cespitosa) with sea lavender (Limonium latifolium)
5.’Shenandoah’, a selection of the tallgrass prairie native switch grass (Panicum virgatum), here showing its reddish leaves.
6.‘Strictum’ switch grass (Panicum virgatum) with its gold fall colour and seedheads of penstemon and echinacea.
7. Northern dropseed (Sporobolus heterolepis), another tallgrass prairie native, its tiny, zingy flowers doing a dance with the small, pale-pink blossoms of North American native winged loosestrife (Lythrum alatum). More on this perennial in the next section.
Native North American Plants
Mention of the little-known native winged loosestrife brings me to Piet Oudolf’s use of native North American plants. By the time he was commissioned to do the planting scheme for the TBG’s entry border in 2005-6, Piet had become friends with Wisconsin plantsman Roy Diblik, author of The Know Maintenance Perennial Garden, with whom he worked on Chicago’s Lurie Garden at Millennium Park. As we learn in Hummelo: A Journey Through a Plantsman’s Life, when they visited the Schulenberg Prairie together in 2002, Roy recalls that Piet “was so taken with it. It was a very emotional moment for him.” After visiting this prairie and the Markham prairie later that year, Piet began to use many more North American plants in his designs, including some of the less well-known species in my list below.
1.Winged loosestrife (Lythrum alatum) – Mention ‘purple loosestrife’ to ecologically-aware people and alarm bells ring. Try telling them that there IS a native purple(ish) loosestrife and they don’t trust you. Or it could mutate. Or it might really be that other one, the Eurasian invader that’s drying up wetlands everywhere (Lythrum salicaria). But part of Piet Oudolf’s education with Roy Diblik was the discovery of this sweet plant. Native to moist prairies in Illinois and other parts of the northeast, it is at home in a well-irrigated garden where, rather than taking over like its cousin, it will work hard just to have its little pink flowers noticed.
Here’s winged loosestrife with ‘Ice Ballet’ swamp milkweed (Asclepias incarnata). Both species are wetlanders, but do well in regular irrigated soil.
2. Swamp milkweed (Asclepias incarnata), shown above, is a larval plant for the monarch butterfly and a fabulous bee plant. The honey bee, shown below with two bumble bees, comes from the TBG’s five beehives and the Oudolf entry garden is a rich nectar source for them.
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3. Leadplant (Amorpha canescens) – The soft drift of leadplant in the Oudolf entry garden, below, was my first acquaintance with this lovely tallgrass prairie native,one of a few true Ontario natives in the garden. Its common name refers to the old belief that its presence indicated that there were lead deposits nearby, but that was disproven long ago. Its other folk names include downy indigobush (because it looks a little like indigofera) and buffalo bellows (because, to the native Oglala people who brewed it for a medicinal tea, it came into bloom when bison were in their bellowing-rutting season). A legume, it nitrifies the soil in which it grows (it’s usually considered a subshrub, rather than a perennial) and is one of the few natives that tolerates both dry soil and part-shade.
Bees love leadplant and its stamens provide a bright orange pollen. This is the brown-belted bumble bee (Bombus griseocollis).
4. Dense Blazing star (Liatris spicata) – One of the best tallgrass prairie natives for any sunny border, dense blazing star is no stranger to European gardens either, since it’s been available there in the cultivars ‘Kobold’ (shorter and darker purple than the species) and ‘Floristan Violet’ for decades. Like all Liatris species, it’s a great bee and butterfly plant and a good companion for echinaceas, including Piet Oudolf’s introduction below, ‘Vintage Wine’.
Mention is often made of ‘repetition’ in a Piet Oudolf design and this rhythmic syncopation of blazing stars across the vignette below illustrates how those magenta-purple spikes help carry the eye naturally from one side to the other.
5. Amsonias, Bluestars (Amsonia hubrichtii & Amsonia tabernaemontana var. salicifolia) – When I was writing my newspaper column in the mid-1990s, there was a sudden fuss about a genus of North American plants I’d never heard of. Amsonias were on the scene, and I planted Arkansas bluestar (A. hubrichtii) in my garden, which promptly turned up its toes and died. (It may have been a hardiness issue in an unusually cold winter, since this plant is native to the Ouachita mountains of Arkansas and Oklahoma.) Nevertheless, it gained traction in gardening circles and in 2011 was named the Perennial Plant Association’s Perennial of the Year. This is how it looks in the Oudolf border with late spring bulbs.
Arguably the brilliant yellow of the autumn foliage, below, is even more impressive than its ice-blue late spring flowers. Perhaps with our warmer winters, this species will continue to survive and thrive.
There are many species of Amsonia in commerce now, but willowleaf bluestar (Amsonia tabernaemontana var. salicifolia) is a good performer in the TBG entry garden and exceptionally hardy.
6.Joe Pye Weeds (Eutrochium sp., syn. Eupatorium) – The big Joe Pye weeds lend a powerful presence to the entry border in August and September, especially the statuesque ‘Gateway’ (Eutrochium maculatum) below. Given sufficient moisture, they thrive, last a long time in flower……
….. and attract myriad bees and butterflies to their dusty pink flowers.
7. Wild petunia (Ruellia humilis) – Native to dry prairie glades in Wisconsin, Illinois and regions south and west, this short, sprawling perennial has lilac-purple, petunia-like blossoms that are beloved by hummingbirds. Not showy, but a good little edge-of-path stalwart with a tap root. Self-seeds, too.
8. Anise hyssop (Agastache foeniculum) – One of the mainstays of Piet Oudolf’s designs is this aromatic North American Midwest mint family perennial with bee-friendly, lavender-purple flower spikes in mid-late summer. It spreads slowly by rhizomes.
Agastache foeniculum ‘Blue Fortune’ is an excellent selection with good winter presence.
9. Bowman’s root (Porteranthus trifoliatus, syn. Gillenia trifoliata) – One of the most beautiful pictures in the entry border is right at the end (or beginning, depending which way you’re walking) where the path intersects with the entrance to the Floral Hall Courtyard. Here, in June, a starry cloud of Bowman’s root or Indian physic rises behind a skirt of Japanese hakone grass (Hakonechloa macra). In its midst is a hybrid witch hazel which, though small now, will in time produce filtered shade under its boughs – and Bowman’s root is just fine in that light.
Here it is with a few neighbours: Geranium psilostemon and Hosta sieboldiana ‘Blue Angel’.
Special Plants
Sanguisorbas or Burnets – Piet Oudolf, more than any other plant designer, has made abundant use of the great genus Sanguisorba, the burnets. Hardy, reliable and taking up much less space on the ground than their tall, far-flung inflorescences do in the air, they are a much underused group of perennials. This is Sanguisorba tenuifolia ‘Alba’, or the white form of Chinese burnet, flowering alongside annual Verbena bonariensis.
Like Molinia caerulea ‘Transparent’, Chinese burnet is another good ‘screen’ or ‘scrim’ plant, even as its flowers fade. Here it is in front of Helenium autumnale ‘Fuego’.
This is the purple-flowered form of Chinese burnet, Sanguisorba tenuifolia ‘Purpurea’, growing in an attractive combination with Joe Pye weed (Eutrochium sp.)
Even the skeletons look strange and wonderful in autumn.
Burnets are good wildlife plants, attracting bees to their abundant pollen…..
…. and birds to their seedheads in autumn. In my little video below, sparrows are enjoying the seeds of Sanguisorba tenuifolia ‘Alba’, while American goldfinches are feeding on the seed of an unlabelled burnet I suspect is Sanguisorba tenuifolia ‘Pink Elephant’.
Birds & Bees
Speaking of birds and bees, as a photographer of honey bees, bumble bees and various native and non-native bees, I’d be remiss if I didn’t pay tribute to just a few of the great pollinator plants in the Oudolf entry border (besides the ones above, of course).
Calamint (Calamintha nepeta ssp. nepeta) – Calamint is, without doubt, the ‘buzziest’ bee plant there is. The sound is really something, with honey bees and bumble bees all over the tiny flowers – and there are tons of tiny flowers on this bushy little perennial.
‘Walker’s Low’ catmint (Nepeta racemosa) – Long-flowering catmints are superb bee plants, putting out nectar beloved by bumble bees and honey bees.
Wlassov’s cranesbill (Geranium wlassovianum) – Previously unknown to me, this little Asian geranium has become one of my favourites. Not only does it flower for an incredibly long time and prefer filtered shade, its flowers are always dancing with bees and its leaves turn red in autumn.
‘Robustissima’ Japanese anemone (Anemone tomentosa) – Japanese anemones are invaluable for their late summer-early autumn flowers, especially the singles like this lovely selection. And their stamens provide rich pollen at a time of year when bees are still looking to provision their nests.
‘Autumn Bride’ alumroot (Heuchera villosa) – It’s fun to watch honey bees working the tiny white flowers of this fabulous late heuchera.
Purple coneflower (Echinacea purpurea) – Echinacea and many of the selections are excellent bumble bee flowers, but they also provide abundant food for seed-eating birds like American goldfinch. A good reason not to cut down your perennial garden in late summer!
Seedheads
While we’re on the topic of seedheads, one of the hallmarks of Piet Oudolf’s design philosophy is the use of plants that perform beyond their flowering season, with persistent stems and seedheads that provide structure in the garden into autumn and winter. These are just a few of the entry border’s distinctive seedheads:
Swamp milkweed (Asclepias incarnata) – The familiar chambered pods of milkweeds ripen, dry and split open in late autumn to reveal a layered arrangement of teardrop-shaped seeds topped by fine hairs. Over the next week or two, the seeds will gradually lift off on their silken parachutes, aloft on the wind to land on an empty inch of damp soil on which they’ll germinate the following spring. This is the milkweed life cycle that has evolved over millennia in all its regional species throughout North America in partnership with the monarch butterfly, whose females lay their eggs on the leaves, which then feed the developing caterpillar until it forms its chrysalis to emerge as the familiar orange-and-black butterfly we admire so.
‘Purpurlanze’ astilbe (Astilbe chinensisvar. tacquetii) – I love the feathery bronze plumes of this Ernst Pagel-bred astilbe with the fountain grass (Pennisetum) behind.
Purple coneflower (Echinacea purpurea) – Long after the American goldfinches (above) have migrated south for the winter and the first snows have fallen, the raised seedheads of echinacea flowers still show their Fibonacci architecture.
‘Fascination’ Culver’s root (Veronicastrum virginicum) – The coppery wands of spent Culver’s root look beautiful against the tawny grasses of late autumn.
Plants That Go, Plants That Come…..
Not all of the original plants in the design thrived beyond a few years. One that was quite short-lived was the beautiful ornamental clover (Trifolium rubens), with dark pink flowers, below. In an ideal world, this plant would be allowed to self-seed, ensuring progeny for successive seasons. But it has petered out gradually.
Some of the yellow and orange hybrid echinaceas, like yellow ‘Sunrise’ shown in the early years with purple liatris, below, have also largely given up the ghost. Their lack of longevity (contrasted with the reliable long life of Piet’s Echinacea ‘Vintage Wine’) seems to be part-and-parcel of their genetic makeup, a fact Noel Kingsbury acknowleges in Hummelo: A Journey Through a Plantsman’s Life. “The 2000s saw a lot of breeding of E. purpurea with other Echinacea species, mostly in the U.S…… Some exciting color breaks – oranges and apricots – resulted, but the plants were mostly short-lived. For those wanting longer-lived plants, this breeding has not been of any use. We can only hope that someone picks up Piet’s work on longevity.”
Unlike a traditional perennial bed or mixed shrub-perennial border with a modest number of plants, a broad meadow planting like the entry garden with its huge cast of flowery characters is an open invitation to opportunistic plants, good and bad. With so many gardens (including a natural woodland) surrounding the entry walk, it was inevitable that seeds would fly into the rich, irrigated soil – either on the wind, or carried by birds. One of the immigrants – from the green roof of the administration building – is lovely foxglove penstemon, P. digitalis, a plant whose red-leafed form ‘Husker Red’ is used by Piet in his designs. Easy, prolific. drought-tolerant and a great bumblebee and hummingbird plant, this penstemon’s shimmering white spikes are quite lovely in June. It’s one of my favourite perennials.
But there are also seeds that may have been in the soil for many years, just waiting to germinate. Such is the case with common milkweed (Asclepias syriaca), below, which I first spotted in my photos in 2011, four years after the garden was planted. Like Canada goldenrod, this is an aggressive native that spreads not only by seed, but by rhizomes underground. Beautiful and fragrant as it is, is difficult to maintain a small population. And given that the better-behaved swamp milkweed (Asclepias incarnata) is here already and there are ‘wild’ places on the TBG property where common milkweed could be welcomed for its relationship to monarch butterflies, I hope it is kept in check so the design intent of the Oudolf garden is not lost.
Which brings me to maintenance. Toronto Botanical Garden currently operates on a financial shoestring. Unlike other popular parks and public places in Toronto, the TBG receives a pittance from the city. Hopefully, that will change in the near future as the City of Toronto Parks Department and the TBG conduct public consultations (two so far, one in November 2016, the last in late February) towards greatly increasing the size of the garden from the current 4 acres to 30 acres, placing all the current Edwards Gardens within a civically-supported Toronto Botanical Garden. However, at the moment, the head gardener works with just a few assistants and a changing team of volunteers to maintain not just the entry garden, but the other 16 gardens on site, and one or two off-site.
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For perspective, I chatted with Toronto Landscape architect Martin Wade of Martin Wade Landscape Architects, below right, who collaborated with Piet Oudolf, left, on the design of the entry border, which was gifted to the TBG by the Garden Club of Toronto.
Martin fondly recalled their first meeting. “It was absolutely wonderful collaborating with Piet. He is extremely down-to-earth, humble and generous. I remember so clearly the very first time we met. After picking him up at the airport, we came back to our house where my partner was preparing dinner. It was shortly after we had moved in. I had not yet “done” the garden – it was a collection of plants left over from the previous owners. We were in the midst of a renovation and the place was in a bit of a shambles. IKEA curtains hung to cover exposed plumbing, bare sub-floor in some areas, and yet with all of this, it was somehow as though we had known one another for ages Piet sat down in a chair that had clearly seen better days and, over a single-malt whisky, the three of us talked about life in general and what our respective interests were. When I asked him what was important to him, he answered, without any hesitation, ‘Quality. Quality in terms of food, wine, art, relationships, architecture, landscape, virtually everything in life.’ The notion of quality as being the driving force that stimulates him has stuck with me.”
Martin & I talked about maintenance. Unlike Chicago’s 2.5 acre Piet Oudolf-designed Lurie Garden (Landscape Architects: Gustafson Guthrie Nichol), which cost $12.5 million and has a $10 million endowment for maintenance alone, the TBG’s entry garden has no separate budget for maintenance. Similarly, unlike the Oudolf-designed Marjorie G. Rosen Seasonal Walk at the New York Botanical Garden, below, a much smaller garden which has the equivalent of half-a-full-time employee dedicated to maintenance (including the hedge), there is no dedicated employee budgeted for the TBG’s Oudolf garden.
Before the entry garden was installed, Piet Oudolf, Martin Wade and the Garden Club of Toronto (GCT) had a frank discussion about long-term maintenance of the garden. By Piet’s estimate, the entry border would require a minimum of one full-time gardener dedicated to its upkeep. “As Piet explained,” recalls Martin, “His gardens, while ‘naturalistic’ and ‘meadow-like’ in appearance, are anything but low maintenance. They require regular tending to keep species that were not part of the original design out. I have noticed the invasion of common milkweed in the garden. This is a plant that has a host of great qualities and should be encouraged and let flourish in the right locations. However, it was not part of the original plan. The intent always was that the garden would be monitored yearly to ensure any of the more aggressive species in the plan were kept in check, and that the original plan be maintained, other than in the case of some species that just might not perform well, for which minor design adjustments would have to be made. This ‘monitoring’ process involves taking a copy of the plan in hand, walking throughout the garden, making note of what has crept into areas in which it was not meant to, and making adjustments accordingly.”
“Sadly,” he continues, “I don’t think the garden is achieving to the full extent the goals that were envisioned when the project began. I don’t mean this in any way as a criticism of the TBG or its staff, as I realize the extreme pressure they are under with respect to finances and resources that can be allocated to maintenance, not only of the entry garden, but all of their gardens.Maintenance is such a huge issue for all gardens, private or public, not only for the TBG gardens. It is relatively sexy these days to give a new building wing naming rights to honour the benefactor who helped make it a reality. The same applies to gardens. While a ‘sexy motive’ was not their intent, the Garden Club of Toronto was nonetheless very generous in gifting the Piet Oudolf/MWLA garden to the TBG. That is their mandate. The GCT funds public garden projects.”
Martin cites another of his projects to illustrate the level of financial commitment needed. “Our firm designed the Helen M. Kippax Garden at the Royal Botanical Garden in Hamilton. The funds for this garden were donated by the late Mary Stedman in honour of her aunt Helen Kippax, one of the founding members of the Canadian Society of Landscape Architects. Ms. Stedman’s donation is suitably honoured by a plaque in the garden. She also had the foresight and financial ability to donate money to a trust fund, the interest from which is earmarked solely for the maintenance of the Kippax Garden. We need these types of visionaries, and institutions need to find a way to raise money not only for the installation of our public gardens, but for their long-term maintenance.”
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But if the entry garden could use more a little more manpower to relieve the hard-working gardeners and volunteers, it is still, without a doubt, my favourite garden at the TBG. It takes me back to that childhood meadow I’ve carried in my heart for 60 years. It nourishes bees and butterflies and birds and the spirits of the visitors who walk the long path, flanked by a profusion of beautiful blossoms and swishing grasses.
And in case you haven’t taken that walk yourself, let me leave you with a beautiful memory of a warm August afternoon in the entry garden at Toronto Botanical Garden. Thank you, Garden Club of Toronto. Thank you, gardeners. Thank you, Martin Wade. And thank you, Piet Oudolf.
It was early April 1999, and we were visiting Hummelo in the Netherlands so I could talk with Piet Oudolf and see his garden. I had read his books and followed his burgeoning design career with interest. Given my childhood love of wild places, I was always more interested in designers who embraced a naturalist ethos and synthesized that into their work, whether purely aesthetic or ecology-based. When we visited Hummelo, I had just finished an in-depth magazine profile on Michael Hough, a seminal member of the mid-20th century ecological landscape movement. Scotland-born Michael had been a student of Ian McHarg (Design With Nature) at Edinburgh’s College of Art and later at the University of Pennsylvania, before founding the University of Toronto’s Undergraduate program in Landscape Architecture, then moving to York University to teach in their fledgling Environmental Studies program and publish his own book, Cities and Natural Process. Later on this trip, we would visit the botanical garden at Leiden and Ecolonia in Alphen aan den Rijn, below, an experimental housing development whose architecture, landscape, utilities and infrastructure had been built earlier that decade using principles of ecological design.
Hummelo
The Oudolfs were generous in greeting us. Anja still ran the nursery then, Kwekerij Oudolf with its goddess Flora…..
….. and retail customers were busy buying the plants that the Oudolfs raised to use in Piet’s designs. In time, other Dutch growers would become adventurous in their plant introductions; this fact, combined with the demands of Piet’s business and Anja’s busy schedule accommodating groups wanting to tour the garden eventually caused the Oudolfs to close the nursery and build a studio in its place.
We toured the garden; as it was early spring, not much was in bloom, but the hellebores and wild phlox were lovely.
The Stachys byzantina ellipses were still there, along with the famous yew towers and undulating yew hedges which would later be damaged by flooding. Both features were eventually removed and this garden was planted with sweeping perennials.
The trial beds were impressively ordered – and vital in teaching Piet how various perennials performed: their hardiness, floriferousness, optimal companions, seedhead properties, pollinator attraction, winter persistence, etc.
It was still very much a place where the Oudolfs worked as a team to expand and improve the palette of plants, but there were abundant touches of simple domesticity.
Piet graciously posed for my camera at a picnic table in a little enclosed garden surrounded by spring-flowering shrubs.
Then we said farewell and headed off to the nearby garden of Eugénie van Weede at Huis Bingerden, below. At the time of our visit, Eugénie been holding her International Specialist Nursery Days, a 3-day June plant fair attracting thousands of visitors, for four years. (In 2016, there were 37 exhibitors.) In turn, her inspiration came from Piet and Anja Oudolf, who had held their own annual Hummelo Open Days (later Grass Days) beginning in 1983. By the mid-1990s, visitors numbered in the thousands. Wrote Piet in his rich memoir Hummelo: A Journey Through a Plantsman’s Life, by Piet Oudolf and Noel Kingsbury (The Monacelli Press, 2015): “Our idea was to bring people together. Of course we wanted to create some income, but thought it would also be a good idea to bring a selection of growers who share the same interest in plants, as an advertisement for all of us.” It was Piet Oudolf, seedman Rob Leopold and Piet’s original partner, nurseryman Romke van de Kaa (formerly Christopher Lloyd’s head gardener in the 1970s) — the men she calls her three ‘godfathers’ — who advised Eugénie on the nurseries she should include in her Nursery Days.
Fast-forward 15 years to a lovely day in August 2014, and there I was photographing the Piet Oudolf-designed entry border at my own local Toronto Botanical Garden, as I’ve been doing regularly for more than a decade. Even though I recall my visit to Hummelo with pleasure, my relationship with the entry border feels less like a connection to the Netherlands than an arrow that points right back to my childhood. A childhood spent in a meadow.
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You Can Take the Child Out of the Meadow….
How does one become a meadow maker? Perhaps it might happen through sheer neglect: abandoning a plot of land to flowering weeds and long grasses which, through a stretch of imagination, might eventually approximate a reasonably attractive community of plants. Though leaving meadow-making to serendipity rarely achieves satisfactory results, it was nevertheless a meadow of happenstance that became my first intimate connection with nature and, by extension, with gardening. For it was an old field across the road from my childhood home in Victoria, B.C., the one just behind the trees at left that you can’t make out in this photo….
…. that taught me how Spanish bluebells and English daisies emerged in spring as grasses turn green; how California poppies preferred the stony ground to the rich, damp soil where western buttercups grew, the ones we held under our chins to see who liked butter best.
Oxeye daisies and horsetails, bindweed, tansy and purple clover: these were the meadow weeds I came to love. As little as I was, I felt at home in that chaotic wildness, the old field that promised adventure – even the spittle-bugs that brushed our cheeks as we crawled through the grasses on all fours playing hide-and-seek.
If, as landscape designer Julie Moir Messervy contends in her 1995 classic The Inward Garden, the joyful, treasured places of our childhood become the environments we yearn for as adults, my Victoria field was the idyll I tried to recreate a half-century later in the wild front garden of our Toronto home, below, …..
….. and in the meadows of our cottage at Lake Muskoka….
….. where bees and butterflies and birds are welcomed.
But meadow-making, for me, though it became somewhat more ‘designed’ and much more interesting than conventional gardening, never approached an art form. It was more about capturing a little corner of ‘wildness’ outside my door. Making a meadow that appears to be wild but is ‘enhanced nature’, that relies on deep knowledge for its plant palette and a wealth of experiment for its dynamic combinations: that is the work of a master. And that is how Piet Oudolf came to design the entry border at the Toronto Botanical Garden (TBG).
But first, let’s back up a little to 2006.
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Toronto Botanical Garden
In the early 2000’s, when Toronto’s Civic Garden Centre was being transformed from a small, horticulture-related institution to the Toronto Botanical Garden (TBG), a series of 17 themed gardens were designed to skirt around the new LEED building and extend out into the modest 4-acre property. . (You can see my seasonal galleries of all these gardens on the TBG’s website). Landscape architects for some of the gardens included PMA Landscape Architects Ltd. and Sparling Landscape Architects. For the prominent entry walk along the entrance driveway and the long south wall of the building, funding was provided by the Garden Club of Toronto to commission Toronto landscape architect Martin Wade of MWLA, below left, and Piet Oudolf, right, to collaborate on the hardscape and plant design.
Garden club member Nancy Laurie (who provided these photographs of the planting) was intimately involved with the beginning of the garden. As she recalls: “The club was asked to design and install a perennial garden that welcomed visitors into a botanical garden. The parameters of the garden area were predetermined by the TBG and the space was limited in height and width variations. It was surrounded by two parking lots, sidewalks and a building. It would most likely be viewed first by many from inside a moving car. In addition, the other gardens that would eventually make up the new Toronto Botanical Gardens would be of a more formal design. This garden had to stand out from the others. Be different. Announce this is as an avant botanical garden.Martin Wade proposed including the internationally acclaimed perennial designer Piet Oudolf to join the project as a consultant specifically for the planting design and selection of plants using his much admired naturalistic interpretation of a traditional perennial border garden.”
Apart from having read some of Piet’s books on plant design and hearing him speak at conferences, Nancy had also helped organize several two-day symposiums on the theme of the natural garden. “So I was personally very keen to make this ‘new’ garden paradigm a key element in our new entrance garden,” she recalls. “The garden world of the 1990’s and early 2000’s was embracing a more modern approach to the traditional formal English-style perennial garden. Piet Oudolf’s alternative style is characterized by naturalistic plantings, both in techniques and style, and using plant material that suited the terrain, climate and growing conditions already present in the site. He was recognized at the time as the master of the ‘new perspective of planting’ to paraphrase the title of one of his books. He was ‘The Man’.”
The plant design was complete and ready for reference.
With the hardscaping and rough grading having been done earlier that spring, the garden was ready for planting. But first there were some preliminary steps. The garden was divided into precise grids….
………which would facilitate transference of the design outlines onto the ground.
Once the grid was finished, the outline of the plant groupings themselves was sprayed onto the surface of the soil with a non-toxic paint…..
…..like a plant-by-number guide.
The Garden Club had teams of planting volunteers ready and they listened to words of wisdom from Piet before starting. Says Nancy Laurie: “The committee gained enormous experience working through this project. At its completion, I prepared a process paper on how to organize and use volunteers to help install a large garden project under the leadership of a landscape architect. Martin Wade used the suggestions to direct the volunteers at his installation of several new gardens at the Royal Botanical Garden the following year.”
Then it was out into the garden. Most of the plants were Heritage Perennials from the Ontario division of Valleybrook Gardens.
As Nancy recalls: “Martin Wade managed the process of planting the garden with the help of Garden Club volunteers. Piet was on site for the first planting day to offer suggestions and help. He conferred with Martin and often stepped into the garden with the volunteers to show them how to properly plant a specific variety.”
Nancy Laurie still recalls Piet’s planting lessons from that day.
When ready to plant, start at one end of the garden and move backwards so that the soil does not get compacted with foot traffic. Use planks of wood to walk on especially if the soil is wet so it does not compact.
Working in one grid area, dig all of the holes for one plant variety.
Loosen the soil around the planting hole several inches larger than the plant root system. Step back and look to see if the planting area is what it looks like on the plan. Adjust if needed before actually installing the plants.
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The entry walk was transformed that June into a fluttering, buzzing, verdant place of great beauty, different in all seasons, and indeed different from year to year, as the plants intermingled, possibly even more than their designer intended, and a few disappeared eventually, to be replaced by others. Let’s take a look at a small area, just in front of the glass screen dividing the border from the Floral Hall courtyard just to the north. Here it is on Piet’s plan.
Here’s the area as it looked in early spring 2006, with its new espaliered ‘Donald Wyman’ crabapples and coppery paperbark maples (Acer griseum).
Now look at it in May 2012, below. Seasonal spring bulbs are part of the changing display in the garden and, when carefully planted, they don’t affect the emergence of the perennials in Piet’s design.
Here it is in June 2011 with the Geranium psilostemon and Astrantia ‘Roma’ flowering amidst the lush green foliage of Deschampsia caespitosa.
I captured this autumn scene in October 2009, with the Deschampsia in flower and toad lilies (Tricyrtis formosa ‘Samurai’) blooming at left.
The genius of the entry garden, for me, especially in the early years when the perennials had not yet seeded about and intermingled, was that it transformed itself through the seasons — especially evident with the ornamental grasses.
Here’s my video of more of the seasonal changes in various parts of the garden.
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Before I move on to more seasonal scenes from the garden, I’d like to acknowledge the hard work of former head gardener Sandra Pella, her assistant gardeners and former TBG horticulturist Paul Zammit, who oversaw the demanding maintenance of the entry garden on a shoestring budget, and with great enthusiasm.
I was there to photograph it each spring….
……when the brilliance of the tulips, daffodils and small bulbs was especially welcome after the long winter we have in Toronto.
Families of donors to the garden help to plant new bulbs each autumn, changing the show annually. The emerging perennials are unaffected by the bulbs growing in their midst.
Late spring featured the big, purple heads of alliums…..
…… and lush peonies like ‘Krinkled White’, here with willow-leaf bluestar (Amsonia tabernaemontana var. salicifolia)…..
….. and ‘Bowl of Beauty’, with mauve Phlomis tuberosa ‘Amazone’, left and the white form of the mourning widow geranium (G. phaeum f. album) behind …..
…. and stunning red ‘Buckeye Belle’ with Salvia nemorosa ‘Caradonna’ in the background.
But the summer months are when the Oudolf garden hits its stride, as the lush, ornamental grasses begin to fountain around the stems of the flowering perennials. In early summer, deep-red Knautia macedonica pops out like dots in a pointillist painting.
I love knautia for its long flowering season and its attractiveness to all kinds of bees.
Here are three Oudolf favourites: from rear, mauve ‘Fascination’ Culver’s root (Veronicastrum virginicum), ‘Blue Fortune’ anise hyssop (Agastache foeniculum) and the lime-green, needled leaves of Arkansas bluestar (Amsonia hubrichtii), half-way between its pale-blue spring flowers and brilliant gold fall colour.
A little later comes the beautiful echinacea show, here with the salmon daylily Hemerocallis ‘Pardon Me’ and ‘Veitch’s Blue’ globe thistle (Echinops ritro), which is…..
….. another exceptional bee plant.
August is my favourite time in the garden, as the grasses reach their stately heights and the late-season perennials flower. Here’s a little vignette of what you see as you do the entry walk in early-mid August: violet spikes of blazing star (Liatris spicata); creamy-white rattlesnake master (Eryngium yuccifolium); the lush, burgundy flowers of the various Joe Pye weeds (Eutrochium sp.); the small, dark-red wands of burnet(Sanguisorba sp.); and echinaceas.
Below we have the self-seeding annual Verbena bonariensis, left, leadplant (Amorpha canescens) past its flowering, centre, and red-spiked ‘Firetail’ persicaria (P. amplexicaulis) at right.
By October, the Virginia creeper (Parthenocissus quinquefolia) on the stone wall of the Raymond Moriyama-designed Flower Hall has turned bright red and the seedheads and fall colour of the big grasses in the Oudolf border take centre stage, along with a few asters and goldenrods that have sneaked into the border from other parts of the botanical garden.
One year, aromatic aster Symphyotrichum oblongifolium ‘October Skies’, below, native to the central and eastern United States, looked stunning punctuated with echinacea seedheads. But this lovely aster, used by Piet at Lurie Garden in Chicago, seems to have diminished in subsequent years, part of the inevitable reality of plant experimentation, something to which Piet Oudolf has paid great attention over the decades.
Perennial seedheads are an important part of the seasonal show in the garden; these are the mocha-brown October seedheads of the yarrow Achillea millefolium ‘Walther Funcke’, with silvery Perovskia atriplicifolia ‘Little Spire’ at right and bronze Astilbe ‘Purpurlanze’ in the background.
And provided that repeated heavy, wet snowfalls do not knock down the plants and ruin the show, the entry garden demonstrates the beauty of the persistent seedheads and stems throughout winter. The grass at left is Korean feather grass (Calamagrostis brachytricha).
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Plants and Memories
Many of the plants in the entry garden are part of Piet Oudolf’s personal history: breeding successes of the German or Dutch plantsmen who were part of his circle – and horticultural education – since the beginning of his design career and life in Hummelo. People like Ernst Pagels (1913-2007), of Leer, himself a student of Karl Foerster, the iconic nurseryman who sheltered Jews in his nursery during the Second World War and whose name is memorialized in a well-known feather reed grass (Calamagrosis x acutiflora). As explained in Hummelo: A Journey Through a Plantsman’s Life, in the 1980s Piet Oudolf travelled often across the border into Germany to visit Pagels at his nursery where they would talk plants. “We went to get the newest plants, and to bring them home…. and we exchanged a lot.” Among the Ernst Pagels jewels that live in the TBG’s entry garden are Achillea ‘Walther Funcke’….
…. Astilbe chinensis var. tacquetii ‘Purpurlanze’ and Stachys officinalis ‘Hummelo’ …..
…. Phlomis tuberosa ‘Amazone’……
…. and Salvia nemorosa ‘Amethyst’, shown here with Allium cristophii.
Piet’s Dutch friend and fellow plantsman Coen Jansen is responsible for the tall meadowrue Thalictrum ‘Elin’.
And his German colleague Cassian Schmidt, director of the famous garden at Hermannshof, (thanks Tony Spencer for that great blog entry) has his own name memorialized in the beautiful, Kurt Bluemel-raised fountain grass Pennisetum alopecuroides ‘Cassian’, shown here with the statice Limonium latifolium…..
As for Piet Oudolf himself, long before he designed the planting of the TBG’s entry border, he was selecting his own plants and registering them. In 1998, the year before I visited him at Hummelo, he joined with two other growers to launch their company Future Plants, “to market their introductions and to protect their work through Plant Breeder’s Rights.” As explained in Hummelo: A Journey…, these plants were often put into production in the U.S. before Dutch nurseries had started to raise them. Among the Piet Oudolf-propagated plants in the entry garden are the pale-mauve hybrid monkshood Aconitum ‘Stainless Steel’….
……. Astrantiamajor ‘Roma’…..
….. Echinacea purpurea ‘Vintage Wine’, with its lovely dark stems….
….. Monarda ‘Scorpion’…..
….. Perovskia atriplicifolia ‘Little Spire’, a compact Russian sage shown below with Calamintha nepeta (a fabulous bee combo!)…..
….. Persicaria amplexicaulis ‘Firedance’…..
….. Salvia ‘Madeline’…..
….. Salvia verticillata ‘Purple Rain’ (this photo with Achillea ‘Anthea’ was made at the Royal Botanical Garden in Burlington, near Toronto) …..
…. and finally the spectacular Culver’s root Veronicastrum virginicum ‘Fascination’, given its tongue-in-cheek name by Piet Oudolf because of its genetic tendency to ‘fasciation’, a flattening of the flower spike.
That concludes the first part of my two-part blog on the entry garden at the Toronto Botanical Garden. In Part Two, I drill down into Piet Oudolf’s garden plan to show you some terrific plant combinations, and some of my favourite plants and why.
