Although no reports of toxicity have been found for this plant, at least 3 other members of this genus have reports that the leaves are toxic
. Some caution is therefore advised in the use of this plant.
One report says that the plant is edible but does not say what part of the plant
. It is more likely to be the root, though some caution should be taken, see the notes above on toxicity[K].
There are no material uses listed for Asarum nipponicum.
There are no medicinal uses listed for Asarum nipponicum.
Seed - best sown in a cold frame as soon as it is ripe in the summer
. Stored seed will require 3 weeks cold stratification and should be sown in late winter
. The seed usually germinates in the spring in 1 - 4 or more weeks at 18°c
. When large enough to handle, prick the seedlings out into individual pots and grow them on in light shade in the greenhouse for at least their first winter. Plant them out when large enough in late spring.
Division in spring or autumn. Plants are slow to increase
. It is best to pot the divisions up and keep them in light shade in the greenhouse until they are growing away strongly.
Practical Plants is currently lacking information on propagation instructions of Asarum nipponicum. Help us fill in the blanks! Edit this page to add your knowledge.
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.
Prefers a rich moist neutral to acid soil in woodland or a shady position in the rock garden.
Plants are hardy to at least -15°c.
The flowers are malodorous and are pollinated by flies.
Plants often self-sow when growing in a suitable position
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Asarum nipponicum. Do you know of an interaction that should be listed here? edit this page to add it.
Polycultures & Guilds
There are no polycultures listed which include Asarum nipponicum.
This table shows all the data stored for this plant.
Material uses & Functions
Native Climate Zones
Adapted Climate Zones
Native Geographical Range
Root Zone Tendancy
? Chiej. R. Encyclopaedia of Medicinal Plants. MacDonald ISBN 0-356-10541-5 (1984-00-00)
? Stary. F. Poisonous Plants. Hamlyn ISBN 0-600-35666-3 (1983-00-00)
? 3.03.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
? 4.04.14.2 Rice. G. (Editor) Growing from Seed. Volume 2. Thompson and Morgan. (1988-00-00)
? 5.05.15.25.35.4 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
? F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
? Ohwi. G. Flora of Japan. (English translation) Smithsonian Institution (1965-00-00)