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Wednesday, August 27, 2008

Garden Diary: the August burst continues


The pond entrance to the garden should create a sense of mystery and draw a visitor on to see what's around the corner. The curves that direct the eye to the left are there now, finally, but the plantings aren't right. Shrubs need to be placed strategically to block views and the perennial plantings need more work, particularly to contrast large, textured foliage near the viewer (Petasites japonicus x 'Dutch', Darmera peltata, Ligularia 'Desdemona') with smaller foliage in the distance.


The August burst of plant exuberance continues with Joe Pye Weed, Liatris pycnostachya, Inula racemosa 'Sonnenspeer' continuing in flower while the spent bloom of Rudbeckia maxima and Filipendula add geometric interest and seasonal complexity.




The Inula in the foreground (below) and Rudbeckia maxima further back provide an interesting study in contrasting structure (not that these look particularly well together). I'm pleased with the Inula (I ordered 20), which have grown quite large in the first season, thanks to the big roots shipped by Bluestem Nursery (link at top) last spring. The basal leaves of this plant are about 30 inches long, and I expect them to be even larger next year. Walking among these is like communing with living vegetable gnomes designed by Paul Klee.


... and most of the Inula even flowered in the first year.

Thursday, August 21, 2008

Versatile Joe Pye Weed


I wish it weren't called a weed. That turns so many people off Eupatorium maculatum and its various other forms. There's no better plant for a difficult, wet site. Here it is again, this time with Mountain mint (Pycnanthemum muticum).

Monday, August 18, 2008

Walking in the garden


Yesterday, late in the afternoon, I took a walk in the garden, just looking around, making a weekend assessment. Well, really just looking around to see how my plant friends are doing. It was the 12th anniversary of my father's death, and I was repeating a pattern I became familiar with in his life. After retirement, my father continued to work - not hard work, he helped out in the pro shop of a local golf club - but enough work to take up most of his days. Early every summer evening he would come home. The first thing he did was go out to his garden and spend a few minutes just looking around. Sometimes he would do a little work, pick some okra or tomatoes or beans. He always had a vegetable garden, grown in poor draining red Mississippi clay, but it was one of the delights of his life. Now my garden is the delight of mine. It's a very different garden, but I feel I'm carrying on a tradition I learned long ago.

At the top, a familiar combination of Joe Pye Weed (Eupatorium maculatum 'Purple Bush'), the foliage of Queen of the Prairie (Filipendula rubra 'Venusta') turning lovely golden color in the August sun, at the front, a small Iron Weed (Vernonia noveboracensis) planted from seed and in its first year, and at the far left Eupatorium perfoliatum, just coming into its own. Seeded vernonia is scattered all over the garden; I expect it to grow into large colonies that will dramatically alter the distribution of plant mass and open space in the next few years.

Next, more of the Eupatorium perfoliatum, with more Joe Pye Weed and Miscanthus 'Gracillimus' in the background, and a (now) small vernonia at front.


Below, the same combination, with addition of Sanguisorba canadensis in the foreground and a couple of flower stalks of Rudbeckia maxima out of focus in the background.


Also seeded widely throughout the garden, Great Blue Lobelia (Lobelia syphilitica) is now in full boom. I'm thinking of ordering more seed and using the lobelia as a groundcover.


Last, Cardinal flower (Lobelia cardinalis) in its second summer, a gift of a friend, from her friend, who grew it from seed. This is in an area near the deer exclusion fence, where I will eventually plant shrubs to block the view of the wire fencing.


My father didn't use binomial Latin names for his plants, but considering the possibility, even probability of total confusion otherwise, I think he would agree with the concept.

Monday, August 11, 2008

The Battery Bosque Garden by Piet Oudolf

The Gardens of Remembrance at Battery Park in New York City was the first phase of Piet Oudolf's master plan for the park. That garden lines the Promenade along the curving waterfront at the southernmost tip of Manhattan. The second phase of Oudolf's master plan, the Battery Bosque, was completed in 2005. It is a much larger 4 acre area created with sustainable plantings in the interior of the park, amid a grove of 140 plane trees. (The Battery Conservancy has a really good web site with maps, plant lists, slide shows, and lots of other information about the new park and future developments.)



A thunderstorm rapidly approaching from the west, with high winds and a short, heavy rain, quickly darkened the sky in the photo above, taken on a visit last Friday afternoon. In the distance you can see the white caps kicked up by the wind and some park visitors clearly enjoying the drama of the approaching storm from this exposed point. Fronting on the inner harbor, and subject to all types of inclement weather throughout the year, the plantings in this garden have to be "sustainable" in more than one sense.

Though I work in Manhattan, I have gotten to Battery Park to see the gardens only two times in the last six years (I'm ashamed to say, especially since I'm an admirer of Oudolf's work). So this was my first view of the Battery Bosque, and that only as part of an excursion by water taxi to see Olafur Eliasson's waterfalls installations. And I have only visited in August, when the plantings have already endured the heat and drought of a New York July. Oudolf's plantings, with few exceptions probably having more to do with maintenance - a real challenge in a New York City park - than plant choice, remain in good condition. As expected with any Oudolf garden, plants passed their blossoming time retain structural and color interest, and other plants are still flowering even in the heat, with more coming on for the end of summer and fall. Below is a part of a large planting of acanthus thriving near the waterfront. (This is either Acanthus spinosus or Acanthus mollis 'Rue Laden' according to the Conservancy's plant list.)



Nearby a planting of the all green form of Hakonechloa macra surprised me. This grass is used extensively in the Battery Bosque plantings, and it is among the best looking of the grasses even in the heat of summer. I would have thought it more delicate and less able to stand up to the stressful conditions in Battery Park. Even though the plane trees provide some shade, this is an exposed, hot and windy place in the summer. Perhaps the harbor water, only a few feet away, ameliorates the harsh conditions.


Toward the eastern end of the Bosque, Oudolf uses larger, bulky, tall, and geometrically interesting plants. Here prairie dock (Silphium terebinthinaceum), with its giant basal leaves and wiry flowering stems, emerges from a bunch of rattlesnake master (Eryngium yuccafolium) and, I believe, Little blue stem (Schizachrium scoparium 'The Blues'). Large mounds of Joe Pye Weed (Eupatorium maculatum 'Gateway') and Ironweed (Vernonia noveboracensis) block the view and add a sense of privacy in the background. This is like visual music.



Below the contrasting shapes, textures and colors of Shenandoah switch grass (Panicum virgatum 'Shenandoah') and Mountain mint (Pycnanthemum muticum) are a study in one Oudolf design technique...


as are the long-lasting button-shaped seed heads of a monarda.


A large mass of Persicaria filiformis 'Lance Corporal' runs off into yellow flowering Patrinia scabiosifolia in a very "loose" planting that is illustrative of the underlying conceptual framework of the garden. The plantings throughout are arranged in variously sized, island-like elongated shapes on a ground of sandy soil that serves as the walking surface, so you move from island to island, observing a constantly changing palette of plantings (if you're lucky enough to enjoy such a wealth of herbaceous perennials; most park visitors seem oblivious).



Two plants thriving in the sun and heat are Skullcap (Scutellaria incana and serrata) and the flowering onion (Allium angulosum). These are used extensively, and repeatedly, almost like a musical theme recurring throughout the garden.


Here the plants are combined with Panicum virgatum 'Dallas Blues', whose flowers will add their drama later in the fall.


More Eryngium yuccafolium backed by Vernonia ...


and a magnificent planting, with a Battery Park City building in the background, that captures the openness of the park and plantings.


Another dramatic, and playful, use of Silphium terebinthinaceum, Panicum 'Dallas Blues', Joe Pye Weed, Eryngium and, in the foreground, a white flowering plant I don't recognize, even using the Conservancy plant list.


An unusual pairing of oakleaf hydrangea (Hydrangea quercifolia) and Sesleria autumnalis ...


and another unexpected pairing of cardinal flower (Lobelia cardinalis) with Amsonia tabernaemontana.


Molinia litoralis 'Transparent' tossing in the heavy wind before the approaching thunderstorm...


A beautiful study in texture and color: Crambe maritima. This appears tucked into only a few beds and is not on the Conservancy plant list, so it may be planted experimentally.



The distinctive form of toad lily (Tricyrtis 'Togen' or 'Empress'), another surprise; I know this as a woodland, shade plant, but here it's in almost full sun ...


and here combined with Panicum 'Dallas Blues' and Allium angulosum ...




And another big clump of Vernonia (above), just because I love this plant. I think this native captures so well the naturalistic effect Oudolf is striving for in this highly artificial garden, planted in an exposed location, overrun with tourists, at the edge of the harbor, in one of the most urban settings in the world - a setting marked by the nearby great hole in the earth that used to be the World Trade Center.

And last a groundcover, a low blanket on the earth, used next to some of the tallest perennials in the garden, Clematis x jouiniana 'Praecox'.




This is only a glimpse of the Bosque Garden in August, probably not at its best. I hope to get back this fall, and earlier in the season next year to see what's happening as the park's third phase comes into being.

Tuesday, August 05, 2008

Plants for wet clay: August 3


Late Sunday afternoon I made a quick tour of the garden and confirmed some of the keepers in my wet clay soil (mostly baked clay in July and August). First the old standbys, Filipendula rubra 'Venusta', Rudbeckia maxima, Miscanthus gracillimus (above and below). And now a major new addition, proven through winter, is Liatris pycnostachya, a little bluer in the photos than in reality. And above, an elegant spray of a native Scirpus. Below, in the foreground, a Hybiscus moschuetos not yet in bloom.


Joe Pye Weed and some rapidly naturalizing hemp agrimony (Eupatorium cannibinum), give a colorful background, and contrasting shape, to the Liatris wands.


Last, white Physostegia virginica, yellow Patrinia scabiosifolia, and the giant leaves of Silphium terebinthinaceum. The Physostegia really thrives in the wet, as does the Silphium, which stubbornly refuses to flower (much) in its third year; no great loss since its foliage alone is enough for me. The Patrinia is surviving, but will take another year to prove its mettle.

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