Polygonum maackianum

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Polygonum maackianum
Light:Full Sun Part Shade
Moisture:Mesic Hydric
Soil pH:5.6-8.4
Height:2'
Blooms:Mid Summer-Early Fall
Native to:
Edible Rating:PFAF Edibility Rating
Tea:Yes
Poisonous

Polygonum maackianum

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.

Cultivation: We have very little information on this species and do not know if it is hardy in Britain, though judging by its native range it should succeed outdoors in most parts of the country. The following notes are based on the general needs of the genus.

Succeeds in an ordinary garden soil[1] but prefers a moisture retentive not too fertile soil in sun or part shade[2]. Succeeds in wet soils[3]. Repays generous treatment[1].

Plants seem to be immune to the predations of rabbits[4].

Range: E. Asia - China, Japan.

Habitat: Wet places along ditches, river banks and rice fields in lowland C. and S. Japan[3]. Shaded grassy places in valleys at elevations of 100 - 1600 metres[5].

Edibility: Leaves - raw or cooked[6].

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

Pollinators: Insects

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

Seed Ripens: Late Summer-Mid Fall

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: Persicaria maackiana. (Regel.)Nakai.

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. 3.0 3.1 Ohwi, Jisaburo. Flora of Japan. Smithsonian Institution, 1965.
  4. Thomas, Graham. Perennial Garden Plants. J. M. Dent & Sons, 1990.
  5. Flora of China. 1994.
  6. Kunkel, Günther. Plants for Human Consumption. Koeltz Scientific Books, 1984.