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Summary
Physical Characteristics
Lathyrus japonicus is a PERENNIAL growing to 0.6 m (2ft).
See above for USDA hardiness. It is hardy to UK zone 3. It is in flower from May to August, and the seeds ripen from August to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, Lepidoptera (Moths & Butterflies).
It can fix Nitrogen.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil. The plant can tolerate maritime exposure.
UK Hardiness Map
US Hardiness Map
Synonyms
Plant Habitats
Cultivated Beds;
Edible Uses
Edible Parts: Leaves
Edible Uses:
Young plant - raw or cooked. An excellent sustenance[207].
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
None known
References More on Medicinal Uses
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Other Uses
References More on Other Uses
Cultivation details
An easily grown plant, succeeding in any moderately good garden soil[1]. It prefers a deep moist well-drained soil in a cool position[187]. Prefers a position in full sun, growing well on hot sunny banks[200]. The seed remains viable for 4 - 5 years in sea water[200]. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[200].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
Fahrenheit:
The PFAF Bookshop
Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).
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Plant Propagation
Pre-soak the seed for 24 hours in warm water and then sow in early spring 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. If you have sufficient seed, then it can also be sown in situ in mid spring[200]. Division in spring. It may not transplant well so care should be taken[200].
Other Names
If available other names are mentioned here
Native Range
TEMPERATE ASIA: Russian Federation-Western Siberia (Western Siberia (north)), Russian Federation-Eastern Siberia (Eastern Siberia (north)), Russian Federation-Far East (Far East), China (Hebei Sheng, Liaoning Sheng, Shandong Sheng, Zhejiang Sheng), Korea, Japan NORTHERN AMERICA: Canada (Northwest Territories, Nova Scotia, Ontario, Prince Edward Island, New Brunswick, Newfoundland and Labrador, Manitoba, British Columbia), Greenland (south), United States (Alaska, Connecticut (south), Indiana (northwest), Maine, Massachusetts (east), Michigan, New Hampshire (south), New Jersey, New York, Ohio (north), Pennsylvania (northwest), Rhode Island, Vermont (north), Illinois (north), Minnesota (north), Wisconsin (east & north), Oregon, Washington, California (northwest)) SOUTHERN AMERICA: Argentina (w. Patagonia) EUROPE: Denmark, Finland, United Kingdom, Ireland, Iceland, Norway, Sweden, Germany (north), Poland (north), Russian Federation-European part (European part (north)), Spain (north-central), France (north)
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
Willd.
Botanical References
60200
Links / References
For a list of references used on this page please go here
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Subject : Lathyrus japonicus
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