Astilbe rivularis var. myriantha
many-flowered waterside astilbe
A perennial to 1.8m tall, forming a bold clump of handsome, divided green foliage tinted bronze, with greenish-white flowers borne in large, branched and drooping sprays later in summer
Size
Ultimate height
1.5–2.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Poorly–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Bronze | |||
|---|---|---|---|---|
| Summer | White | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or West–facing or North–facing
Exposure
Sheltered Hardiness
H4Botanical details
- Family
- Saxifragaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
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
Correct
- Plant range
- SW China, regional Himalayas
How to grow
Cultivation
Grow in moist or boggy soil in dappled shade, or in indirect sun where the soil remains moisture-retentive in summer. Drought intolerant, may be damaged in hot sun. Good for waterside planting. See Astilbe cultivation
Propagation
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
- Architectural
- Cottage and informal garden
- Flower borders and beds
Pruning
Cut back after flowering
Pests
Generally pest-free but may be susceptible to vine weevil
Diseases
May be susceptible to powdery mildews
Get involved
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