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Yellow corydalis flower clusters with fine fern-like foliage against an old wallPerennials

Corydalis lutea

Yellow Corydalis

corydaliswall plantlong-floweringrock gardenself-seeding

Yellow corydalis is a charming, long-flowering perennial with fern-like light green foliage and clusters of yellow, spurred flowers. From May to October it continually produces new blooms. The plant self-seeds effortlessly in wall crevices and between stones.

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Before
After

Characteristics

Sun
Partial shade
Water
Medium
Height
20–40 cm
Spread
25–40 cm
Hardiness zone
5–7
Family
Papaveraceae
Evergreen
No
Flower colors
yellow
Wildlife value
bees

Bloom period

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Care guide

Plant in partial shade in well-drained soil. Tolerates dry spells, provided they are not too prolonged. The plant loves to establish itself in wall joints and rock gardens. Feeding is rarely needed — overly rich soil reduces flowering.

Pruning tips

Pruning is seldom necessary. Remove excess seedlings if the plant spreads too vigorously. Optionally cut back old foliage after summer to encourage fresh growth.

Good companions

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Partial shadeMedium30–50 cm