Although no reports of toxicity have been seen for this species, skin contact with some members of this genus can cause dermatitis or other allergic reactions in some people[222].
Range
E. Asia - northern China, Japan and eastern Russia.
Habitat
Mountains in C. and S. Japan[58]. Forest margins, roadsides, slopes, canyons and forest steppe at low elevations[266].
Edibility Rating
1 (1-5)
Medicinal Rating
0 (1-5)
Physical Characteristics
Perennial growing to 1m.
It is hardy to zone 0. It is in flower from July to November, and the seeds ripen from August to November. The flowers are hermaphrodite (has both male and female organs) and are pollinated by Insects.
The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil.
The plant prefers acid, neutral and basic (alkaline) soils.
It can grow in semi-shade (light woodland) or no shade.
It requires dry or moist soil and can tolerate drought.
The leaves are used for flavouring rice dumplings[177].
Medicinal Uses
None known
Other Uses
None known
Cultivation details
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 many parts of this country. The following notes are based on the general needs of the genus.
Easily grown in a well-drained circumneutral or slightly alkaline loamy soil, preferring a warm sunny dry position[1, 200]. Established plants are drought tolerant[200]. Plants are longer lived, more hardy and more aromatic when they are grown in a poor dry soil[245].
Members of this genus are rarely if ever troubled by browsing deer[233].
Propagation
Seed - surface sow from late winter to early summer in a greenhouse, making sure that the compost does not dry out[200]. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant out in late spring or early summer.
Division in spring or autumn[200].
Basal cuttings in late spring. Harvest the young shoots when about10 - 15cm long, pot up in a lightly shaded position in a greenhouse or cold frame and plant them out when well rooted. Very easy.
Links
Permaculture.info Details of this plant in the Permaculture.info project, a community plant and permaculture database.
References
[1] F. Chittendon.RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951 Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
[58] Ohwi. G.Flora of Japan. (English translation) Smithsonian Institution 1965 The standard work. Brilliant, but not for the casual reader.
[177] Kunkel. G.Plants for Human Consumption. Koeltz Scientific Books 1984 ISBN 3874292169 An excellent book for the dedicated. A comprehensive listing of latin names with a brief list of edible parts.
[200] Huxley. A.The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5 Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
[222] Foster. S. & Duke. J. A.A Field Guide to Medicinal Plants. Eastern and Central N. America. Houghton Mifflin Co. 1990 ISBN 0395467225 A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
[233] Thomas. G. S.Perennial Garden Plants J. M. Dent & Sons, London. 1990 ISBN 0 460 86048 8 A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.
[245] Genders. R.Scented Flora of the World. Robert Hale. London. 1994 ISBN 0-7090-5440-8 An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
[266] Flora of China 1994 On-line version of the Flora - an excellent resource giving basic info on habitat and some uses.
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