Region: East Asia, China, Japan, Korea, Siberia.
Habitat: woods and thickets; in mountains; in deciduous broad-leaved, mixed broad-leaved, and coniferous forests;elevations of 200 to 2800 metres; prefers deep rich soil, neutral or slightly alkaline; doing well in sun or light shade, prefers part shade; intolerant of waterlogged or too dry soil; lime tolerant; frost tolerant.
Use: ornamental; medicinal.
Herb; perennial; 45 cm tall; long-lived plant, for 50 years; young branches are brittle and very subject to wind damage; grows slow.
Root: subject to slug damage in moist soils; < root disturbance.
Pollination: by insects; self-fertile.
Closely related to Paeonia japonica.