Persicaria

Knotweed

Poor Persicaria! Certain weedy, invasive members of the genus have given the rest a bad name, and discouraged gardeners from getting to know these versatile performers. Our garden-worthy selections are happiest in semishade with ample moisture.

Persicaria affinis ‘Dimity’ (P-0250)

Each $8.00

AVAILABLE AUGUST 2018

<i>Persicaria affinis</i> ‘Dimity’

The deep green leaves of this graceful ground cover turn a rich brown during the winter and form a thick mat over a few seasons. The jointed, wine-red stems pick up the accents in the white and crimson flowers which are arranged, lavenderlike, along dense 2 to 3 in. terminal spikes held over a foot above the foliage. As the blooms mature, they darken to a crimson-rose shade, and finally end their days colored a rich rusty brown.

Blooms late May–September.

Size: 18" high x 3' 0" wide.

Hardy to zone 3.

Persicaria amplexicaulis ‘Fat Domino’ (P-1853)

Each $9.00

AVAILABLE SPRING 2019

Evolving from a 2002 Belgian breeding program, 'Fat Domino’s bushy rich green foundation hosts a rubescent surge of long chubby, dark red racemes that don purplish overtones. Dashing large pointed textural leaves are loosely arranged on numerous staunch, upright jointed stems. With a reliable saucy stance plus sumptuous long blooming flowers, this strong growing Persicaria can be positioned right up front and superimposed against white flowering Nicotiana sylvestris, where it easily turns heads until the seasonís end.

Blooms August-October

Size: 3' 0" high x 3' 0" wide.

Zone 5/6.

Legions of slim white fleecy tapers, cresting tall straight stalks, promote cool floral accents for a hot summer day. Enhanced by prominent midribs, wavy margins and cordate bases, the large pointed matte green leaves fashion an attractive upright bushy clump that doesn’t spread and looks classy, especially when coupled with other snowy bloomers such as Astilbe ‘Ellie’ and Aster ‘White Lovely’.

Blooms August – October.

Size: 3-1/2' high x 3' 0" wide.

Zone 5/6.

<i>Persicaria amplexicaulis</i> ‘Atrosanguinea’

Named for its rosy red, Bottlebrush-like flower spikes, which hover above broad green leaves, ‘Atrosanguinea’ combines well with Panicum ‘Prairie Sky’ and Anemone ‘Andrea Atkinson’.

Blooms August–October.

Size: 4' 0" high x 0" & spreading wide.

Zone 5/6.

Persicaria amplexicaulis ‘Blackfield’ (P-1891)

Each $9.00

AVAILABLE SPRING 2019

Raised by Chris Ghyselen, the Belgian who introduced ‘Fat Domino’, this long flowering must-have Persicaria delivers frisky black-tipped tapers, parading dark unopened buds and deep dusky red flowers. The full-toned blooms make a splendid spectacle above energetic flowing mounds of bold lance-shaped leaves that greet autumn with buttery yellow hues.

Blooms August–October

Size: 3' 0" high x 3' 0" wide.

Zone 5/6.

Persicaria amplexicaulis ‘Golden Arrow’ (P-1422)

Each $8.25

AVAILABLE SEPTEMBER 2018

These lance-shaped golden green leaves promise to perk up the darker recesses of your landscape. Perched over a bright leafy mass, narrow tassellike spikes create an irresistible splash of vibrant cardinal red accents.

Blooms August–October.

Size: 2-1/2' – 3' 0" high x 0" & spreading wide.

Hardy to zone 4.

<i>Persicaria amplexicaulis</i> ‘Inverleith’

A leafy dwarf form of Persicaria amplexicaulis, this low growing cultivar has narrow foliage, crimson tapers and a refined appearance. It makes a perfect understory for late blooming Hydrangea ‘Unique’.

Blooms August–October.

Size: 18" high x 0" & spreading wide.

Zone 5/6.

A mainstay for bridging the gap between summer and fall, this new Belgian introduction imparts vertical late season color over lusty foliage. Green spear-headed leaves compose a big bushy base that launches an irresistible flood of long blooming slim 4 in. tall, orange-red tails. ‘Orange field’ can be positioned in the mixed border, where its exhilarating shades meld with Salvia confertiflora or bring a lift to white Hydrangeas, Phlox, Helianthus and blue flowering Salvias.

Blooms August–October.

Size: 3' 0" high x 3' 0" wide.

Zone 5/6.

In an elegant presentation, ‘Rosea’ offers 4 to 5 in. long flowers—slender and softly pink tapers—borne on tall stems. Its lush, prominently veined foliage turns a vibrant yellow in fall.

Blooms August–October.

Size: 4' 0" high x 0" & spreading wide.

Zone 5/6.

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.

We brought ‘Summer Dance’ home from Piet Oudolf’s Dutch nursery and have come to appreciate its brighter, less rambunctious nature. Swaying to a late summer breeze, our stand lives up to its name while cheerfully commingling amid Anemone ‘Andrea Atkinson’ in the border.

Blooms August–November.

Size: 3' 0" high x 0" & spreading wide.

Zone 5/6.

Persicaria amplexicaulis ‘Taurus’ (P-1709)

Each $8.25

AVAILABLE SPRING 2019

Cozy scarlet shades infuse the slender tapers of this steadfast Blooms of Bressingham introduction. Perfect for arrangements and touted as richer and fuller than most Persicarias, the sassy long blooming flowers prance above a carefree mound of medium green triangular leaves. Ensconced with Eupatorium purpureum, Aster ‘Blue Danube’ and Helianthus ‘Lemon Queen’, ‘Taurus’ offers a pleasing late season medley.

Blooms August–October.

Size: 3' 0" high x 3' 0" wide.

Zone 5/6.

Above low-lying large Dock-like green leaves with undulating margins, the firm upright branching stems release a fluffy floral pageant of plump, dense-set bright pink pokers. This hearty AGM winner grows as a handsome easy-care ground cover, emphasizing jubilant blooms that are more vividly colored and a bit later plus a tad smaller than its similar sister ‘Superba’. Prized by butterflies and flower arrangers, ‘Hohe Tatra’ effectively knits together shrubs and taller perennials in an adequately moist mixed border.

Blooms May–July

Size: 18" – 2' 0" high x 2' 0" wide.

Hardy to zone 4.

<i>Persicaria bistorta</i> ‘Superba’

Myriad crepe-paperlike dark green leaves in curly festoons decorate the base of these showy and long lasting 4 to 5 in. dense spikes of pale pink flowers. This Persicaria is perfect for cutting and admirable in the border with Digitalis ‘Snow Thimble’. Clump-forming, it can easily be divided annually.

Blooms April–June.

Size: 2' 0" high x 2' 0" wide.

Hardy to zone 4.

Persicaria microcephala ‘Red Dragon’ (P-0859)

Each $8.00

AVAILABLE END OF SEPTEMBER 2018

<i>Persicaria microcephala</i> ‘Red Dragon’ <i>Persicaria microcephala</i> ‘Red Dragon’

Darkly alluring, this sumptuous perennial has plenty of reason to be “big headed,” so we find the epithet microcephala a somewhat dubious observation. Each spring, deep red shoots emerge and lift themselves into a graceful arching form. Velvety leaves of a rich burgundy purple are dramatically marked with lance-shaped mint-green and silver chevrons, and later in the season are topped with delicate white flowers.

Visually arresting anywhere, plant ‘Red Dragon’ in a container or in the garden and let its gemlike elegance be set off by bright-leafed Spiraea ‘Magic Carpet’. It prefers moist soil, but can adapt to drier conditions.(PP# 12,062)

Blooms August–September.

Size: 3' 0" – 4' 0" high x 4' 0" wide.

Hardy to zone 5.

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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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