Yuan Zhi (Polygala sibirica)
At a glance
- Lifecycle
- Perennial (hardy)
- Exposure
- Full sun
Cultivation
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. It is a very variable plant. The following notes are based on the general needs of the genus. Prefers a moderately fertile moisture-retentive well-drained soil, succeeding in full sun if the soil remains moist throughout the growing season, otherwise it is best in semi-shade. Dislikes shade according to another report.
Propagation
Seed - sow spring or autumn in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division. Cuttings of young shoots in a frame in late spring.
Edible uses
Young leaves - cooked. Root - cooked. We have no more details on this species but the root of another member of this genus has its core removed before the root is cooked in several changes of water.
Medicinal uses
The leaves are used in the treatment of spermatorrhoea. The roots are diuretic, expectorant, haemolytic and sedative. The plant is also considered to be analgesic, diuretic, expectorant and nervine.
Habitat
Dry calcareous slopes in Ukraine.
Native range
E. Europe to E. Asia.