Viola yezoensis
| Viola yezoensis | |
| Light: |   |
| Moisture: |  |
| Hardiness: | 6 |
| Soil pH: | 5.6-7.3 |
| Height: | 1' |
| Width: | 1' |
| Blooms: | Mid Spring-Late Spring |
| Native to: | |
| Edible Rating: |  |
| Medicinal Rating: |  |
| Tea: | Yes |
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Viola yezoensis (common name: chinese violet)
Propagation: Seed - best sown in the autumn in a cold frame. Sow stored seed in early spring in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer.
Division in the autumn or just after flowering. Larger divisions can be planted out direct into their permanent positions, though we have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the summer or the following spring.
Cultivation: Prefers a cool moist well-drained humus-rich soil in partial or dappled shade and protection from scorching winds. Tolerates sandstone and limestone soils but becomes chlorotic if the pH is too high. Prefers a pH between 6 and 6.5[1].
Plants are hardy to at least -15°c[2].
All members of this genus have more or less edible leaves and flower buds, though those species with yellow flowers can cause diarrhoea if eaten in large quantities[3][4][5].
Range: E. Asia - Japan.
Habitat: Grassy fields in lowland, C. and S. Japan[6].
Edibility: Young leaves and flower buds - raw or cooked[7]. When added to soup they thicken it in much the same way as okra[4][5].
A tea can be made from the leaves[4].
Medicinal: The whole plant is antibacterial, anti-inflammatory, antipyretic and depurative[8][9][2]. It is used internally in the treatment of boils, carbuncles, snakebite, skin disorders, mumps etc[2]. The plant is harvested when in flower and dried for later use[2].
Pollinators: Insects
Soil: Can grow in light, medium, and heavy soils.
Drainage: Prefers well drained soil.
Flower Type: Hermaphrodite
Links
References
- ↑ Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ 2.0 2.1 2.2 2.3 Bown, Deni. Royal Horticultural Society Encyclopaedia of Herbs and Their Uses. Dorling Kindersley, 1995.
- ↑ Elias, Thomas. A Field Guide to North American Edible Wild Plants. Van Nostrand Reinhold, 1982.
- ↑ 4.0 4.1 4.2 Harrington, Harold. Edible Native Plants of the Rocky Mountains. University of New Mexico Press, 1967.
- ↑ 5.0 5.1 McPherson, Alan and Sue McPherson. Wild Food Plants of Indiana. Indiana University Press, 1977.
- ↑ Ohwi, Jisaburo. Flora of Japan. Smithsonian Institution, 1965.
- ↑ Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
- ↑ Kariyone, Tatsuo. Atlas of Medicinal Plants.
- ↑ Yeung, Him-Che. Handbook of Chinese Herbs and Formulas. Institute of Chinese Medicine, 1985.