Icon Legend

New Plant
New/Featured for 2020

Full Sun
Full Sun

Partial Shade
Partial Shade

Shade Lover
Full Shade

Drought Tolerant
Drought Tolerant

Picture Available
Picture Available

Drawing Available
Drawing Available

(PPAF) = Propagation of this plant prohibited without a license.

Hardiness Zone Map


Corydalis

The closest relatives of this striking genus are the bleeding hearts. The Greek name, meaning “crested lark,” alludes to the elegant bird-like appearance of the flowers, which grow in ra­cemes among ferny foliage.

<i>Corydalis</i> ‘Blackberry Wine’

Drink in the multitudes of pendulous, white-

flecked flowers adorning this sweetly perfumed and richly hued, quick-to-establish Corydalis. The blooms really are the color of blackberry wine, and set against fern-like blue-green leaves, impart a heady aspect to the garden, especially when contrasted with the golden blades of Hakonechloa ‘All Gold’.

Blooms May–November

Size: 10" high x 18" wide.

Hardy to zone 5.

Exalted for its taller, more robust and long-flowering visage, this exciting new C. flexuosa and C. elata cross was bred in France and recently introduced in England. Embodying the best qualities of both parents, ‘Blue Line’s vigorous fine cut foundation maintains a reliable summer presence, highlighting a honey-scented flood of white-throated, deep metallic-blue blossoms on tall reddish tinted stems. The eye-catching flowers keep coming from spring ’til fall and create quite a show alongside Begonia ‘Alba’ and flanked by bold-leafed Rodgersia ‘Bronze Form’.

Blooms May–September

Size: 15" high x 15" wide.

Hardy to zone 4.

<i>Corydalis curviflora</i> var. <i>rosthornii</i> ‘Blue Heron’

Keenly selected on a collecting trip to Sichuan, China by Dan Hinkley, ‘Blue Heron’ heralds the largest, darkest, richly blue blooms of all our Corydalis offerings. Finely divided blue-green foliage becomes a gossamer-like backdrop for the fragrant sapphire-blue flowers, whose extraordinary cool colors can be enjoyed near fellow shade dweller Epimedium ‘Frohnleiten’.

Blooms April–June

Size: 9" high x 12" wide.

Hardy to zone 6.

<i>Corydalis flexuosa</i> ‘Blue Panda’

Long after other Corydalis have gone dormant for the summer, ‘Blue Panda’ will brighten your garden with vibrant, electric blue blooms above a tidy mound of filigree textured foliage. Tuck it under the upright, vigorous stems of Euphorbia x robbiae and the white flowering Viburnum ‘Chiquita’ for a striking vignette.

Blooms May–November.

Size: 10" high x 18" wide.

Hardy to zone 4.

<i>Corydalis flexuosa</i> ‘China Blue’

Imagine the bluest sky you have ever seen and you may come close to envisioning the flower color of this dazzling and vigorous cultivar. The glaucous leaves provide a lovely backdrop for the carefree clusters of spectacular blue flowers.

Blooms March–July

Size: 10" high x 18" wide.

Hardy to zone 4.

<i>Corydalis flexuosa</i> ‘Pere David’

Perhaps the most vigorous of the flexuosa, this graceful Corydalis spreads by underground stems, forming good-sized colonies of neat, low-mounding foliage adorned with bright blue flowers on willowy stems.

Blooms February–July

Size: 6" – 8" high x 18" wide.

Hardy to zone 4.

We have Hillier Nursery, a venerated UK mainstay, to thank for this valiant, repeat blooming Corydalis. Selected from a group of flexuosa seedlings, it hosts dazzling, large tubular flowers saturated with vibrant frosty-blue shades atop distinctive, fine-hewn, blue-green foliage that dons bronze tones. ‘Porcelain Blue’ provides additional enticements: the somewhat loosely arranged, easy-care clump doesn’t undergo a summer dormancy, plus its show-stopping sweetly scented racemes appear in spring and again in late summer, enchanting bees, hummingbirds and plant connoisseurs alike.

Blooms April–June & September

Size: 12" high x 18" wide.

Hardy to zone 5.

<i>Corydalis flexuosa</i> ‘Purple Leaf’

With an intriguing royal purple hue infusing each leaf, this low clumping species is the earliest blooming Corydalis we offer, bearing smoky periwinkle-blue flowers throughout the winter in our garden. The lovely leaf color holds best in partial shade.

Blooms November–May.

Size: 10" high x 18" wide.

Hardy to zone 4.

<i>Corydalis ochroleuca</i>

Native to rocky woods and naturalized upon old walls in Europe, this is one of the most beautiful foil plants for a shady garden. The lacy bluish green foliage and creamy white flowers, enhanced by green lips and yellow throats, add a delicate touch to crevices or steps. For more splendor, we combine this almost year-round bloomer with Campanula ‘Blue Waterfall’ and Brunnera ‘Hadspen Cream’.

Blooms June–October

Size: 18" high x 18" wide.

Hardy to zone 5.

  • Catalog Navigation Menu Top
  • Perennials at Digging Dog Nursery
    • Perennials: Acaena to Anthemis
    • Perennials: Anthriscus to Astrantia
    • Perennials: Baptisia to Cynoglossum
    • Perennials
    • Perennials: Fallopia to Gunnera
    • Perennials: Haloragis to Inula
    • Perennials: Kirengeshoma to Morina
    • Perennials: Nepeta to Pulmonaria
    • Perennials: Rheum to Succisella
    • Perennials: Teucrium to Yucca
  • Ornamental Grasses at Digging Dog Nursery
    • Grasses: Acorus to Deschampsia
    • Grasses: Elymus to Uncinia
  • Shrubs at Digging Dog Nursery
    • Shrubs: Arctostaphylos to Halimiocistus
    • Shrubs: Hebe to Weigela
  • Trees & Vines
  • List by Genus
  • Gift Certificates
  • T-Shirts
  • Gift Cards & Etchings
  • Slideshow
  • Gallery
  • Catalog Navigation Menu Bottom

Latest News

There does not seem to be any news today. Check back later!



Current Staff's Favorite Plant

Current Staff's Favorite Plant

Our featured plant:Cercidiphyllum japonicum

Dazzling deciduous trees, November garden oomph!, 2020 T-shirts still available!

Dynamic deciduous trees!

One of the greatest joys of gardening is bearing witness to the changes each season etches upon the landscape. While the crisp blustery autumn days feel invigorating, they also afford some of the most dynamic transformations. The featured deciduous trees are internationally renown for their undemanding handsome habits and prismatic fall displays. Please feel free to visit the tree section of our website and learn more about them!

November garden oomph….

The shorter days and cooler nights of November kindle tantalizing fall color when we include a medley of both evergreen and deciduous woody plants coupled with herbaceous perennials and ornamental grasses. Thankfully, once fall settles in, most of us have less gardening chores and more time for leisurely strolls through our leafy sanctuaries. The plants included in this newsletter offer either late season blooms, captivating leaves or artful branching patterns plus beguiling late season oomph! We hope you’ll consider digging some of them into your garden. 

All of us Digging Dog plant wranglers wish you Happy Digging and good health.

Digging Dog Nursery Right Border