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Herbaceous Perennial

Corydalis flaccida

A clump-forming, tuberous perennial with stems up to 50cm long bearing small, divided, fern-like leaves with the leaflets often tinted with coppery hues. Small blue flowers flushed with reddish-purple are borne in racemes of 5-20 in summer

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Blue Red Purple Green
Autumn Green
Winter
Position
  • Partial shade
Aspect

East–facing or North–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Papaveraceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Corydalis can be annuals, biennials or tuberous or rhizomatous perennials, with ternately or pinnately lobed leaves and racemes of spurred, tubular flowers

Name status

Unresolved

Plant range
Himalaya

How to grow

Cultivation

Grow in moderately fertile, well-drained, humus-rich soil in partial shade

Propagation

Propagate by seed or by division

Suggested planting locations and garden types
  • Cottage and informal garden
  • Rock garden
  • Patio and container plants
  • Flower borders and beds
  • Underplanting of roses and shrubs
Pruning

No pruning required

Pests

May be susceptible to slug and snail damage on young growth but generally pest free

Diseases

Generally disease-free

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