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Corydalis flexuosa



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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11
Botanical Name: Corydalis flexuosa Genus: Corydalis
From late spring to summer, this species produces clusters of brilliant blue flowers over ferny foliage. It is the parent of many of the rapidly expanding selection of choice blue cultivars.
 Noteworthy characteristics: The species and its cultivars usually bloom in spring and go dormant with the onset of summer's heat, and sometimes sprout again in autumn. 
 Care: Prefers partial shade and moderately fertile, well-drained soil.
 Propagation: Sow seed when fresh; germination may be erratic. Divide spring-flowering species in fall.
 Problems: Downy mildew, rust, aphids, slugs, snails; spider mites indoors.
Height 6 in. to 12 in.
Spread 1 ft. to 3 ft.
Growth Habit Clumps
Growth Pace Moderate Grower
Light Full Sun to Part Shade
Moisture Medium Moisture
Maintenance Low
Characteristics Fragrant Flowers; Showy Flowers; Showy Foliage
Bloom Time Late Spring; Spring; Summer
Foliage Color Colorful/Burgundy Foliage
Flower Color Blue Flower
Uses Beds and Borders, Ground Covers, Specimen Plant/ Focal Point
Style Cottage Garden, Woodland Garden
Seasonal Interest Spring Interest, Fall Interest
Type Perennials

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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This fragrant, blue-flowered species is more vigorous and heat tolerant than the blue cultivars. It blooms from late spring to early summer, and its foliage persists throughout the season with adequate moisture.