Polygonum omerostromum

At a glance

Exposure
Full sun

Cultivation

We have very little information on this species and do not know if it is hardy in Britain, though it should succeed as a spring-sown annual in this country. The following notes are based on the general needs of the genus. Succeeds in an ordinary garden soil. Plants seem to be immune to the predations of rabbits.

Propagation

Seed - sow spring in a cold frame. Germination is usually free and easy. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer if they have reached sufficient size. If not, overwinter them in a cold frame and plant them out the following spring after the last expected frosts. Division in spring or autumn. Very easy, larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.

Edible uses

Leaves - raw or cooked. Seed - raw or cooked. It is rather small and fiddly to utilize.

Habitat

Not known

Native range

E. Asia - S. China, Japan.

Same genus