Ultimate height0.1–0.5 metres
Time to ultimate height2–5 years
Ultimate spread0.1–0.5 metres
MoistureMoist but well–drained, Poorly–drained
pHAcid, Alkaline, Neutral
Colour & scent
- Full sun
- Partial shade
South–facing or West–facing or East–facing
ExposureExposed or Sheltered
- Native to the UK
- Clump forming
Astilbe are rhizomatous herbaceous perennials with attractive, usually ternately divided leaves and erect plume-like panicles of tiny white, pink or purple flowers in summer. The old, brown flower-heads remain attractive in autumn
- Name status
How to grow
Grow in moist, fertile, humus-rich soil in full sun or grow in partial shade where soil is not likely to dry out in the summer. Plants must be divided every three to four years to maintain vigour.
Propagate by division in late winter or early spring, pot divisions under glass and plant out in late spring.
Suggested planting locations and garden types
- Cottage and informal garden
- Flower borders and beds
Cut back after flowering
Generally pest free
Powdery mildews may be troublesome
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.