Succeeds in most moist soils in sun or partial shade. Plants do well in moist to wet soils but will also tolerate fairly dry sites. Succeeds in acid or limey soils. Grows well on the woodland edge. Plants can be grown in quite coarse grass, which can be cut annually in the autumn. Plants are hardy to at least -20°c. This is a polymorphic species, especially the form that grows in Japan. There are some named forms selected for their ornamental value, 'Kneiffii' is only half the size of the type species. Plants are fast-growing and form very large clumps. The flowers are sweetly perfumed. Dioecious, male and female plants must be grown if seed is required.

Budlings, stems and young leaves - cooked. Some caution is advised, see the notes above on toxicity.

Seed - best sown in a cold frame as soon as it is ripe. Sow stored seed in late winter or early spring in a cold frame. When large enough to handle, prick the seedlings out into individual pots and grow them on in a cold frame until they are at least 15cm tall. They can be planted out into their permanent positions at any time of the year. Division in early spring or autumn. Very easy, the clumps can be planted out direct into their permanent positions.

Damp woods, shady places and by streams, usually in mountainous areas.