Cardamine hirsuta

RHS Plant Profile
hairy bittercress

Other common names

lamb's cress, chwerw blewog

Annual Biennial

A widespread hardy annual which readily self-seeds in gardens, often appearing when soil is disturbed or in nursery containers. It can produce several generations of plants in one growing season. Small white flowers appear in spring, summer, autumn and in mild winters. These are bourne on thin stems above a basal rosette of lobed pinnate leaves. The flowers are followed by explosive seed pods which distribute extensive quantities of seed. It can be grown as a salad vegetable

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Clay, Sand

Max Height

0.1-0.5 metres

Max Spread

0-0.1 metre

Size

Time to Maturity
1 year
Max Spread
0-0.1 metre
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Loam Clay Sand
Moisture
Well–drained or Poorly–drained or Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
East–facing or North–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Brassicaceae
Native to GB/Ireland
Yes
Foliage
Semi evergreen
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
Correct

How to Grow

Cultivation

A native wildflower that frequently appears in open ground, including gardens, and can be grown as an edible addition to salads. Eradicate unwanted plants by hand weeding or hoeing. See bittercress for further information

Propagation

Propagate by seed. Can spread rapidly if allowed to self-seed so remove unwanted plants before they flower

Suggested planting locations and garden types

  • Wildlife gardens
  • Cottage and informal garden

Pruning

No pruning required

Pests

May be susceptible to flea beetles and aphids

Diseases

Generally disease-free