Corydalis pachycentra

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Herbaceous Perennial

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A spring herbaceous perennial reaching 15cm, which dies away in summer. It has green ferny leaves edged with purple and purplish stems. The flowers are tubular clusters of a true blue colour

Position

Full shade, Partial shade

Soil Types

Loam

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

Loam

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

Position

Full shade Partial shade

Aspect: East–facing or North–facing or South–facing or West–facing
Exposure: 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: 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: Correct
Plant Range: SW China

How to Grow

Cultivation

Grow in deep, moist but well-drained soil in partial shade

Propagation

Propagate from seed or by division

Suggested planting locations and garden types

Cottage and informal garden

Pruning

No pruning required

Pests

May be susceptible to slugs and snails

Diseases

Generally disease-free