Hybrid astilbes bring feathery flower plumes above fern-like foliage, with colour and flowering season varying between the many cultivars.
- Height
- 45–138 cm / 1.5–4.5 ft
- Spread
- 30–61 cm / 1–2 ft
- Light
- Shade / Full sun / Partial shade
- Soil moisture
- Moist, well-drained
- Flowering
- Fall, Spring, Summer
- Maintenance
- Medium
- USDA zones
- 3a–9b
Planting
Plant in a shaded border or woodland bed with organically rich, moist, well-drained soil. Check the cultivar's mature size and flowering season before combining several varieties.
Care
Maintain moisture in hot weather, especially in sunnier positions. Divide clumps about every four years in spring or autumn; leave ornamental seedheads standing if you enjoy their winter shape.
Before planting: Dry soil during hot weather can cause foliage to decline.
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Sources & photo credit
Plant reference: NC State Extension Gardener Plant Toolbox. Content checked . Flowering seasons vary with local climate; USDA zones describe winter cold tolerance.
- Hybrid astilbe: Sten Porse · CC BY-SA 3.0. Resized, converted to WebP and cropped for display.
- Astilbe: David J. Stang · CC BY-SA 4.0. Resized, converted to WebP and cropped for display.
- American alumroot: Behnke Nurseries, Inc. · CC BY 4.0. Resized, converted to WebP and cropped for display.
- Bearberry: Walter Siegmund · CC BY-SA 3.0. Resized, converted to WebP and cropped for display.