Actaea matsumurae, the Kamchatka or Japanese bugbane, is a rhizomatous perennial in the buttercup family, native to Japan, Mongolia and eastern Russia. It is grown for its late-season white flower spikes and is best in partial shade with reliably moist soil.
Family
Ranunculaceae (Buttercup family)
Grows as
Perennial
Light
Part shade
Water
Keep the soil reliably moist, especially in dry spells and during establishment.
Soil
Moist, humus-rich, well-drained garden soil.
Temperature
Hardy in cold winters; tolerates winter lows well below freezing, with best growth in cool temperate summers.
How easy
Easy
Safety
Toxic: The berries are poisonous and the plant is generally regarded as harmful if eaten.
Native range
Japan
Climate
temperate
About
Actaea matsumurae, the Kamchatka bugbane or Japanese bugbane, is a species of flowering plant in the buttercup family Ranunculaceae, that is native to Japan, Mongolia and Eastern Russia. Other common names include baneberry, which is also applied to other Actaea species.
This rhizomatous herbaceous perennial was formerly known as Cimicifuga matsumurae, a name which is still found in the horticultural literature.
How to grow it
The plant is best grown in a partly-shaded, sheltered spot, in soil that remains reliably moist.
Two cultivars, 'Elstead Variety' and 'White Pearl' have achieved the Royal Horticultural Society's Award of Garden Merit. Growing 3–4 ft (0.91–1.22 m) tall, 'White Pearl' is the taller of the two cultivars.
Text excerpted from the Wikipedia article Actaea matsumurae 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.