Geum japonicum -

Family:	Rosaceae
Habit:	Perennial
Height:	0.6
Synonyms:	G. macrophyllum. Willd.
Range:	N. America, E. Asia.

Geum japonicum () is a Perennial which grows to a height of 0.6m . It has a hardness rating of 7and is vunerable to frost.
Geum japonicum will flower in December to January. the seeds ripen from January to February
The flowers from this plant are hermaphrodite (has both male and female organs) and they are pollinated by Insects

Soil Information

Geum japonicum 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
Geum japonicum prefers moist soils

Ideal Planting Locations

Geum japonicum can grow in semi or areas with no shade.

Woods and thickets in hills and low mountains all over Japan[58].

Planting places suited to this plant described below.

• Grows within a woodland garden
• Works within dappled Shade
• Grows in a shady edge

Cultivation Details

Easily grown in any moderately good garden soil that is well-drained[1]. Prefers a soil rich in organic matter[200]. Hybridizes freely with other members of this genus[200].

Edible Uses*

* See disclaimer
Edible Rating: 1/5
The plant is edible[46, 105]. No further details are given.

• Leaves -

Medicinal Uses*

* See disclaimer
Medicinal Rating: 2/5
The root is used as a poultice, applied externally to boils and ulcers[178, 218]. The whole plant is diuretic and astringent[222]. It is cooked with other foods as an astringent in the treatment of coughs and haemoptysis[218].

• Astringent - Produces contraction in living tissue, reducing the flow of secretions and discharges of blood, mucus, diarrhoea etc.
• Diuretic - Acts on the kidneys, promoting the flow of urine.
• Poultice - A moist, usually warm or hot, mass of plant material applied to the skin in the treatment of burns etc.

Propagation

Seed - sow spring or autumn in a cold frame[200]. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer' Division in spring or autumn. This should be done every 3 - 4 years in order to maintain the vigour of the plant[200]. Very easy, larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.

Known Hazards

None known

Other Uses

None known

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

The New RHS Dictionary of Gardening. 1992.
Huxley. A.
Author: Huxley. A.
Rating:
Publisher : Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
Date of Publication : 1992

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