Polygonum virginianum

From Permawiki
Jump to navigation Jump to search
Polygonum virginianum
Light:Full Sun Part Shade
Moisture:Mesic
Hardiness:5
Soil pH:5.6-8.4
Height:2'
Width:2'
Native to:
Edible Rating:PFAF Edibility Rating
Medicinal Rating:PFAF Medicinal Rating
Tea:Yes
Poisonous

Polygonum virginianum (common name: jumpseed)

Propagation: Seed - sow spring in a cold frame. Germination is usually free and easy. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer if they have reached sufficient size. If not, overwinter them in a cold frame and plant them out the following spring after the last expected frosts.

Division in spring or autumn. Very easy, larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.

Cultivation: Succeeds in an ordinary garden soil[1] but prefers a moisture retentive not too fertile soil in sun or part shade[2]. Repays generous treatment[1].

Plants seem to be immune to the predations of rabbits[3].

A polymorphic species[4].

Range: E. Asia - Japan to the Himalayas. N. America - Nova Scotia to Minnesota, Florida and Texas.

Habitat: Woods and thickets in lowland and hills all over Japan[4]. Woods, stream bottoms and lower slopes in Texas[5].

Edibility: Leaves - raw or cooked[6][7].

Seed - raw or cooked. It is rather small and fiddly to utilize.

Medicinal: The plant is astringent, demulcent, diuretic, pectoral and tonic[8][9]. A hot infusion of the leaves, combined with honey locust bark (Gleditsia triacanthos) has been used in the treatment of whooping cough[10].

Pollinators: Insects

Soil: Can grow in light, medium, and heavy soils.

Flower Type: Hermaphrodite

Known Hazards: Although no specific mention has been made for this species, there have been reports that some members of this genus can cause photosensitivity in susceptible people._x005F

Many species also contain oxalic acid (the distinctive lemony flavour of sorrel) - whil

Also Known As: P. filiforme. Dougl.

Links

References

  1. 1.0 1.1 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  2. Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  3. Thomas, Graham. Perennial Garden Plants. J. M. Dent & Sons, 1990.
  4. 4.0 4.1 Ohwi, Jisaburo. Flora of Japan. Smithsonian Institution, 1965.
  5. Diggs, George and Barney Lipscomb. Illustrated Flora of North Central Texas. Botanical Research Institute, 1999.
  6. Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
  7. Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.
  8. Stuart, George. Chinese Materia Medica. Taipei Southern Materials Centre.
  9. Chopra, R. Glossary of Indian Medicinal Plants. Council of Scientific and Industrial Research, New Delhi, 1986.
  10. Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.