Viola japonica
| Viola japonica | |
| Light: |   |
| Moisture: |  |
| Soil pH: | 5.6-7.3 |
| Height: | 1' |
| Blooms: | Mid Spring-Mid Spring |
| Native to: | |
| Edible Rating: |  |
| Medicinal Rating: |  |
| Tea: | Yes |
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Viola japonica
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].
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[2][3][4].
Range: E. Asia - China, Japan, Korea.
Habitat: Lowland areas, C. and S. Japan[5]. Hillsides and damp places in China[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[3][4].
Root - cooked. Mucilaginous[7]. Rich in starch, it is eaten in soups[8].
A tea can be made from the leaves[3].
Medicinal: The whole plant is anodyne, anti-inflammatory, antiphlogistic and depurative[6][9]. A decoction is used in the treatment of abscesses, boils, acute conjunctivitis, hepatitis, acute jaundice, laryngitis and ulcers[6][9][10].
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.
- ↑ Elias, Thomas. A Field Guide to North American Edible Wild Plants. Van Nostrand Reinhold, 1982.
- ↑ 3.0 3.1 3.2 Harrington, Harold. Edible Native Plants of the Rocky Mountains. University of New Mexico Press, 1967.
- ↑ 4.0 4.1 McPherson, Alan and Sue McPherson. Wild Food Plants of Indiana. Indiana University Press, 1977.
- ↑ Ohwi, Jisaburo. Flora of Japan. Smithsonian Institution, 1965.
- ↑ 6.0 6.1 6.2 Revolutionary Health Committee of Hunan Province. A Barefoot Doctors Manual. Running Press.
- ↑ 7.0 7.1 Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
- ↑ Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.
- ↑ 9.0 9.1 Yeung, Him-Che. Handbook of Chinese Herbs and Formulas. Institute of Chinese Medicine, 1985.
- ↑ Duke, James and Edward Ayensu. Medicinal Plants of China. Reference Publications, 1985.