VANDERMEER

PLANT LIBRARY

Find the perfect plant for your space by browsing through this extensive selection that we typically carry every year.

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biennial

Pale Corydalis

Corydalis sempervirens

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Pale Corydalis (Corydalis sempervirens) at Vandermeer Nursery

Pale Corydalis flowers

Pale Corydalis flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  24 inches

Flower Height:  4 feet

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  2a

Other Names:  Rock Harlequin

Description:

This variety produces a profusion of delicate sprays of dainty pink flowers with yellow tips in spring, and will continue to bloom all summer; the soft blue-green foliage is airy and attractive; should be sited in cool, moist, partly shaded locations

Ornamental Features

Pale Corydalis has clusters of pink tubular flowers with yellow tips rising above the foliage from late spring to late summer, which are interesting on close inspection. Its attractive lobed compound leaves remain bluish-green in colour throughout the season.

Landscape Attributes

Pale Corydalis is an herbaceous biennial with an upright spreading habit of growth. It brings an extremely fine and delicate texture to the garden composition and should be used to full effect.

This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. It is a good choice for attracting bees and butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Self-Seeding

Pale Corydalis is recommended for the following landscape applications;

  • Rock/Alpine Gardens
  • Border Edging
  • Naturalizing And Woodland Gardens

Planting & Growing

Pale Corydalis will grow to be about 24 inches tall at maturity extending to 4 feet tall with the flowers, with a spread of 24 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium rate, and tends to be biennial, meaning that it puts on vegetative growth the first year, flowers the second, and then dies. However, this species tends to self-seed and will thereby endure for years in the garden if allowed.

This plant does best in full sun to partial shade. It is very adaptable to both dry and moist growing conditions, but will not tolerate any standing water. It is particular about its soil conditions, with a strong preference for poor, acidic soils. It is quite intolerant of urban pollution, therefore inner city or urban streetside plantings are best avoided, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This species is native to parts of North America.

 
 
Hardiness Zone  Plant Height  Minimum Sunlight  Soil pH Preference 
Characteristics
Rock  Edging  Naturalizing 
Applications
Flowers  Foliage Color  Texture  Attracts Wildlife  Deer Resistant 
Features & Attributes

** Plants listed may not be in stock at all times. **

Please contact us directly for current stock availability.
 
Our inventory varies seasonally and we cannot guarantee that every plant will be in stock at all times. To confirm if we have the plant that you're looking for, please call (905) 427-2525 or e-mail  us at info@vandermeernursery.com.
 
Remember, this library does not include our entire selection. Visit us year-round to check out varieties that may not be listed here!