Florist's spiraea (Astilbe japonica) is a clump-forming perennial with feathery plumes of white, pink or red flowers in late spring to summer, grown mainly in shade gardens. The key to success is steady moisture and shade, since it wilts quickly in dry or hot sun.
Family
Saxifragaceae (Saxifrag family)
Grows as
Perennial
Light
Part shade, Shade
Water
Keep the soil consistently moist, especially in spring and summer, and water deeply during dry spells.
Soil
Rich, moist, well-drained loam with plenty of organic matter.
Temperature
10–25 °C; hardy to about -20 °C
How easy
Easy
Native range
Japan (SW. Honshu, Kyushu)
Climate
temperate
About
Astilbe japonica, called false buck's beard, is a species of flowering plant in the genus Astilbe, native to Japan, and introduced in New York State. Its hybrid cultivars 'Deutschland', 'Montgomery', and 'Rheinland' have gained the Royal Horticultural Society's Award of Garden Merit.
Text excerpted from the Wikipedia article Astilbe japonica by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.