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Herbaceous Perennial

Chamaenerion dodonaei

Dodoens' willowherb

A spreading perennial with a woody rootstock and upright stems with short, narrow, hairy leaves. Throughout summer loose spires of cup-shaped, purple-pink flowers are produced

Other common names
rosemary-leaved willowherb
Synonyms
Chamaenerion palustre misapplied
Epilobium dodonaei
see moreEpilobium rosmarinifolium
Chamaenerion angustissimum
Chamerion dodonaei
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Size
Ultimate height
0.5–1 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
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Pink Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

West–facing or South–facing or East–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Onagraceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

Chamaenerion can be annuals or perennials, sometimes invasive, with erect stems bearing willowy leaves and showy, 4-petalled flowers in terminal racemes

Name status

Correct

How to grow

Cultivation

Grows best in humus-rich, moist but well-drained soil in full sun or semi-shade

Propagation

Propagate by seed sown as soon as ripe, or sown in spring; or by division in autumn or spring; or take softwood cuttings from sideshoots in spring

Suggested planting locations and garden types
  • Cottage and informal garden
  • Flower borders and beds
  • Banks and slopes
Pruning

Deadhead to encourage repeat flowering, and prevent self-seeding

Pests

May be susceptible to slugs and snails

Diseases

May be affected by powdery mildews and a rust

Get involved

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