Wet margins of rivers and ponds in the lowland of C. and S. Japan[58]. Wet areas, ditches, banks of rice paddies and roadsides from sea level to 1500 metres[266].
Edibility Rating
1 (1-5)
Medicinal Rating
0 (1-5)
Physical Characteristics
Perennial growing to 0.5m by 0.4m.
It is hardy to zone 7. It is in flower from June to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects.
The plant is self-fertile.
The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and can grow in heavy clay soil.
The plant prefers acid, neutral and basic (alkaline) soils.
It can grow in semi-shade (light woodland) or no shade.
It requires moist or wet soil and can grow in water.
The young plant is edible[177, 179]. No more details are given. The leaves are also used as a condiment[46, 61, 177].
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants.
Always seek advice from a professional before using a plant medicinally.
None known
Other Uses
None known
Cultivation details
An easily grown plant, succeeding in a moist loamy soil[1]. Judging by its native habitat, it should succeed in shallow water. Grows well in heavy clay soils.
Most species in this genus seem to be immune to the predations of rabbits[233].
Propagation
Seed - sow autumn in a cold frame[200]. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.
Division in spring or autumn[200]. Larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.
Links
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 Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
[46] Uphof. J. C. Th.Dictionary of Economic Plants. Weinheim 1959 An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
[58] Ohwi. G.Flora of Japan. (English translation) Smithsonian Institution 1965 The standard work. Brilliant, but not for the casual reader.
[61] Usher. G.A Dictionary of Plants Used by Man. Constable 1974 ISBN 0094579202 Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. 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.
[179] Reid. B. E.Famine Foods of the Chiu-Huang Pen-ts'ao. Taipei. Southern Materials Centre 1977 A translation of an ancient Chinese book on edible wild foods. Fascinating.
[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.
[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.
[266] Flora of China 1994 On-line version of the Flora - an excellent resource giving basic info on habitat and some uses.
Readers Comments
Plants for a Future does not verify the accuracy of reader comments,
use at your own risk. In particular
Plants For A Future can not take any responsibility for any adverse effects from the use of plants.
You should always consult a professional before using plants medicinally.
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