Cardamine pratensis 'Flore Pleno' (d)

RHS Plant Profile

double cuckoo flower

Synonyms

Cardamine pratensis 'Plena'

Herbaceous Perennial

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A compact, clump-forming perennial to 20cm tall, freely producing grey-green leafy plantlets in the basal leaf clusters, and bearing panicles of double lilac-pink flowers in late spring

Position

Full shade, Partial shade

Soil Types

Clay, Loam

Max Height

0.1-0.5 metres

Max Spread

0-0.1 metre

Size

Time to Maturity: 2–5 years
Max Spread: 0-0.1 metre
Max Height: 0.1-0.5 metres

Growing Conditions

Clay Loam

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

Position

Full shade Partial shade

Aspect: North–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): H7

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Brassicaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
Genus: Cardamine are herbaceous perennials with simple, palmately or pinnately divided leaves and short racemes of 4-petalled white, yellow, pink or purplish flowers in spring or summer
Name Status: Accepted

How to Grow

Cultivation

Grow in humus-rich moist soil in full or partial shade

Propagation

Divide after flowering or in early autumn. Root leaf-tip cuttings in midsummer. It may also form plantlets in the axils of the leaflets

Suggested planting locations and garden types

Cottage and informal garden
Rock garden
Wildlife gardens
Flower borders and beds

Pruning

No pruning required

Pests

Aphids and flea beetles may damage the leaves

Diseases

Generally disease-free