Rohdea japonica -

Family:	Convallariaceae
Habit:	Perennial
Height:	0.3
Synonyms:
Range:	E. Asia - S.W. China, Japan.

Rohdea japonica () is a Perennial which grows to a height of 0.3m . It has a hardness rating of 7.
Rohdea japonica will flower in July to October. The flowers from this plant are hermaphrodite (has both male and female organs) and they are pollinated by

Soil Information

Rohdea japonica will grow in light (sandy),medium (loamy),hard (clay) soil. It is not necessary 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
Rohdea japonica prefers moist soils

Ideal Planting Locations

Thickets and woods in the warmer areas of C. and S. 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

Prefers a position in semi-shade in a moderately fertile humus-rich and moisture-retentive soil[200]. Plants are not particular as to the soil type[1].

Edible Uses*

* See disclaimer
Edible Rating: 0/5
None known

Medicinal Uses*

* See disclaimer
Medicinal Rating: 2/5
The leaves and the roots are depurative, diuretic and febrifuge[61, 147].They are used in the treatment of abscesses, boils, sore throat etc[147, 218]. The roots are used externally as a poultice and internally as a heart and nerve tonic[218]. The plant shows cardiac activity, rather like digitoxin (in Digitalis purpurea)[218].

• Cardiac - Used in the treatment of heart problems.
• Depurative - Eliminates toxins and purifies the system, especially the blood.
• Diuretic - Acts on the kidneys, promoting the flow of urine.
• Febrifuge - Reduces fevers.
• Nervine - Stimulates and calms the nerves.
• Poultice - A moist, usually warm or hot, mass of plant material applied to the skin in the treatment of burns etc.

Propagation

Seed - best sown in a greenhouse as soon as it is ripe[200]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division.

Known Hazards

None known

Other Uses

The plant has shown insecticidal activity[218].

• Insecticide - Kills insects.

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

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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