Veronicastrum

Culver's Root

These elegant perennials impart a lofty vertical element to the late summer garden. Graced with distinctive narrow spires of densely arranged tiny flowers, Veronicastrum are native to meadows and woodlands, and are easy to grow in adequately moist soil.

Studded with lavender blue blooms, the lengthy flower spikes make an elegant presentation. Arranged in groups, they stand proudly on upright, sturdy stems, which sport spaced whorls of neat, broadly lanceolate leaves. This noble Asian native offers an admirable contrast to mounding forms, such as Amsonia hubrichtii.

Blooms July–September.

Size: 5' 0" high x 18" wide.

Hardy to zone 4.

<i>Veronicastrum sibiricum</i> ‘Red Arrows’

True to its name, this distinctive undemanding Coen Jansen introduction asserts deep rosy red buds squeezed onto a central spike, surrounded by slightly smaller side stalks all opening at the same time and presenting a unique arrow shape. Cherished by bees and butterflies, the striking spires unfurl a multitude of tiny violet flowers, while whorled lanceolate leaves attire tall steadfast stems. A glamourous upright mainstay for any planting, 'Red Arrows' soars amongst Trifolium rubens, Phlomis 'Amazon' and Sedum 'Matrona' in a prairie-style landscape or a more formal setting.

Blooms July – September.

Size: 4' 0" high x 18" wide.

Hardy to zone 4.

In addition to the stylish blooms, this sought-after Veronicastrum gives you good reason to adore it. When tall valiant stems stretch skyward, they strut prismatic purple shades that are easily spotted from a distance, promising to turn more than a few heads. Round, dense pink buds set the stage for ethereal-looking lilac flowers on candelabra-like spires, further enhancing the dashing whorls of pointed deep green leaves.

Blooms August – September

Size: 4' 0" – 5' 0" high x 2' 0" wide.

Hardy to zone 4.

<i>Veronicastrum virginicum</i> ‘Album’

Resembling glowing tapers, erect snowy white racemes tipped with green buds make a crisp, classic statement. The luminous blooms hold court above whorls of horizontally set deep green foliage that grow at intervals along sturdy upstanding stems. Veronicastrum ‘Album’ commands our attention, while it sheds light on cohorts such as Geranium ‘Jolly Bee’ or Helianthus ‘Capenoch Star’.

Blooms August – October.

Size: 4' 0" high x 15" wide.

Hardy to zone 4.

‘Apollo’s leafy stems taper delicately into foot-long lilac racemes tipped with vivid green buds, which bend and curve, adding a playful air to its imposing carriage. Display graceful ‘Apollo’ with Angelica archangelica’s rounded umbels, and the rosy plumes of Miscanthus ‘Nippon’.

Blooms August – September.

Size: 5' 0" – 5-1/2' high x 2' 0" wide.

Hardy to zone 4.

‘Erica’s strong leafy stems taper delicately into long two-toned racemes of lavish red buds and small tightly packed pale pink flowers with prominent darker stamens. Opening from the base up, the slender wands bend and curve, adding a playful air to the impressive carriage below.

Display this graceful Veronicastrum with Selenium wallichianum’s white umbels, and the rosy plumes of Miscanthus ‘Positano’.

Blooms July–September.

Size: 3' 0" – 4' 0" high x 15" wide.

Hardy to zone 4.

‘Fascination’s leafy stems taper delicately into 15 in. long lilac-rose racemes tipped with vivid green buds, which bend and curve, adding a playful air to its imposing carriage. Display this graceful Veronicastrum with Angelica archangelica’s rounded umbels, and the rosy plumes of Miscanthus ‘Nippon’.

Blooms August–September.

Size: 5' 0" – 5-1/2' high x 2' 0" wide.

Hardy to zone 4.

<i>Veronicastrum virginicum</i> ‘Lavendelturm’

Coined Lavender Towers, this imposing Ernest Pagels introduction is aptly named. Straight-up stems garbed in handsome greenery—whorled, sharply toothed and pointed—give way to long branched spikes embellished with lovely pale purple flowers.

Blooms August – September.

Size: 4' 0" – 5' 0" high x 2' 0" wide.

Hardy to zone 4.

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Current Staff's Favorite Plant

Current Staff's Favorite Plant

Helianthus 'Sheila's Sunshine', Persicaria 'Summer Dance', and Selinum wallichianum

Helianthus ‘Sheila’s Sunshine - P-0461

The sunflower was once an emblem of the Sun God of the Incas. Our sunflowers tolerate a wide range of garden soils, attract bees, and make great cut flowers. Blooms early August – October.

Persicaria ‘Summer Dance’ - P-1312

With foliage that’s close to lime-green, and spiky floral tails that approach the scarlet spectrum of rosy pink, this slow spreading perennial is sure to please. Happiest in semishade with ample moisture. Blooms August–November.

Selinum wallichianum - P-1406

This refined Himalayan beauty happens to be one of our favorite perennial umbellifers. With untold elegance, infinitely divided leaves craft a delicate, lacelike transparency. The compact yet airy green canopy is framed by distinctive, purple-infused branching stems that elevate a charming, late season display of white flattened umbels.

Subduing the riotous array of summertime blooms, it seldom needs staking, and appreciates a well draining moist niche. Blooms June–August.

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