Corydalis linstowiana – Purplish-Blue Biennial Corydalis

Corydalis linstowiana

This species produces copious purplish-blue flowers in spring and fall. It has light green ferny leaves with a mid-rib of silver.

Biennial, but self-seeds in abundance.

Prefers partial shade and moist, well-drained soil.

Sow seed when fresh; germination may be erratic; divide in fall.

Downy mildew, rust, aphids, slugs, snails; spider mites indoors.

Height/Spread: 1–3 ft.
Light: Part shade only
Moisture: Medium
Maintenance: Low
Bloom Time: Early spring to fall
Flower Color: Blue, Purple
Uses: Beds, borders, ground covers, naturalizing, suitable as annual, cottage gardens, woodland gardens
Type: Annual

Other: Corydalis aurea – Scrambled Eggs, Native Biennial with Yellow Flowers; Corydalis cheilanthifolia – Fern-Leaved Corydalis with Bronzy Foliage; Corydalis elata – Fragrant Blue Corydalis, Heat Tolerant; Corydalis flexuosa 'Blue Panda' – Compact Fragrant Blue Corydalis; Corydalis flexuosa 'China Blue' – Sky-Blue Corydalis for Woodland Gardens; Corydalis flexuosa 'Purple Leaf' – Blue Flowers with Purple-Tinged Foliage; Corydalis lutea – Yellow Corydalis, Long-Blooming Shade Perennial; Corydalis ochroleuca – Creamy White Corydalis, Self-Sowing Perennial; Corydalis solida – Fumewort, Spring Ephemeral for Rock Gardens; Corydalis 'Blackberry Wine' – Fragrant Pink-Purple Corydalis for Shade

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