Corydalis flexuosa 'Père David'

RHS Plant Profile

corydalis 'Père David'

RHS

Alpine Rockery Herbaceous Perennial

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'Père David' is a mat-forming plant to 15cm tall, with blue-green leaves and greenish-blue flowers in late spring and early summer

Position

Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Partial shade

Aspect: West–facing or South–facing or East–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Papaveraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Matforming
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: Accepted

How to Grow

Cultivation

Grow in moderately fertile, humus-rich soil

Propagation

Propagate by seed sown in containers in an open frame when ripe or by division in autumn

Suggested planting locations and garden types

Rock garden
City and courtyard gardens
Cottage and informal garden
Patio and container plants
Underplanting of roses and shrubs
Flower borders and beds
Ground cover

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free