Rumex gmelinii -

Family:	Polygonaceae
Habit:	Perennial
Height:	1
Synonyms:
Range:	E. Asia - China, Japan, Korea, Mongolia, Siberia.

Rumex gmelinii () is a Perennial which grows to a height of 1m . It has a hardness rating of 0.
Rumex gmelinii will flower in November to December. the seeds ripen from December to January
The flowers from this plant are hermaphrodite (has both male and female organs) and they are pollinated by Wind

Soil Information

Rumex gmelinii will grow in light (sandy),medium (loamy),hard (clay) soil. It is / is important for the soil to be well drained.
The soil prefers the following PH / acid levels :
- pH of less than 6, Acidic soils
- pH between 6 and 8, Neutral soils
- pH greater than 8, Basic soils
Rumex gmelinii prefers soils

Ideal Planting Locations

Rumex gmelinii can grow in semi or areas with no shade.

Wet places in high mountains, N. Japan[58].

Planting places suited to this plant described below.

• A bog garden plant

Cultivation Details

We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in many parts of this country. The following notes are based on the general needs of the genus. Succeeds in most soils but prefers a deep fertile moderately heavy soil that is humus-rich, moisture-retentive but well-drained and a position in full-sun or part shade[200].

Edible Uses*

* See disclaimer
Edible Rating: 1/5
Leaves - cooked[105, 177].

• Leaves -

Medicinal Uses*

* See disclaimer
Medicinal Rating: 0/5
None known

Propagation

Seed - sow spring in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division in spring.

Known Hazards

Plants can contain quite high levels of oxalic acid, which is what gives the leaves of many members of this genus an acid-lemon flavour. Perfectly alright in small quantities, the leaves should not be eaten in large amounts since the oxalic acid can lock-up other nutrients in the food, especially calcium, thus causing mineral deficiencies. The oxalic acid content will be reduced if the plant is cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition[238].

Other Uses

Although no specific mention has been made for this species, dark green to brown and dark grey dyes can be obtained from the roots of many species in this genus, They do not need a mordant[168].

• Dye - Plants that provide dyes.

Cultivars

no recorded cultivars

References

Flora of Japan. (English translation)
Ohwi. G.
Author: Ohwi. G.
Rating:
Publisher : The standard work. Brilliant, but not for the casual reader.
Date of Publication : 1965

Flora of China

Author:
Rating: http://flora.huh.harvard.edu/china/
Publisher : On-line version of the Flora - an excellent resource giving basic info on habitat and some uses.
Date of Publication : 1994

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