Jeffersonia dubia
| Jeffersonia dubia | |
| Light: |   |
| Moisture: |  |
| Hardiness: | 5 |
| Soil pH: | 5.6-8.4 |
| Height: | 1' |
| Width: | 1' |
| Speed: | Slow |
| Blooms: | Late Spring-Early Summer |
| Open Woods Forest | |
| Native to: | |
| Medicinal Rating: | |
| Tea: | Yes |
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Jeffersonia dubia
Propagation: Seed - best sown as soon as it is ripe in a cold frame[1]. Sow stored seed as soon as possible in late winter or the spring. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Division in early spring[1].
Cultivation: Prefers a peaty or woodland soil and a rather shady situation[2][3]. Suitable for a choice position in a cool leafy soil[4].
This species is hardy to at least -20°c[4].
Plants have an extensive root system and resent disturbance[5]. They should be pot-grown and planted into their permanent positions as soon as possible They should be pot-grown and planted into their permanent positions as soon as possible
Range: E. Asia - N. China to Siberia.
Habitat: Forests[1].
Medicinal: The root is febrifuge and stomachic[6]. It also contains the anti-tumour compound berberine[6].
Soil: Can grow in light and medium soils.
Drainage: Prefers well drained soil.
Flower Type: Hermaphrodite
Links
References
- ↑ 1.0 1.1 1.2 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
- ↑ Royal Horticultural Society. The Plantsman Vol. 4. 1982 - 1983. Royal Horticultural Society, 1982.
- ↑ 4.0 4.1 Phillips, Roger and Martyn Rix. Perennials - The Definitve Reference. Pan Books, 1991.
- ↑ Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
- ↑ 6.0 6.1 Duke, James and Edward Ayensu. Medicinal Plants of China. Reference Publications, 1985.