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Summary
Physical Characteristics

Eupatorium japonicum is a PERENNIAL growing to 2 m (6ft 7in).
See above for USDA hardiness. It is hardy to UK zone 7. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects.
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 can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
E. japonicum. Thunb.
Habitats
Woodland Garden Sunny Edge; Dappled Shade;
Edible Uses
Edible Parts: Leaves Root
Edible Uses:
Young leaves - cooked. Boiled and well seasoned[177]. Root - cooked. It is sometimes eaten for food and is considered beneficial to the circulation[218].
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.
Anodyne Antibacterial Antidandruff Antiviral Carminative Diaphoretic Diuretic Nervine
Vermifuge Women's complaints
The leaves and stems are anodyne, antibacterial, antiviral, carminative, diaphoretic, diuretic, nervine and vermifuge[176, 218]. They are taken internally in the treatment of indigestion, nausea, vomiting, diarrhoea, feverish colds etc[147, 176, 238]. In excess the plant causes irritation to the stomach[238]. The leaves and stems are harvested in the summer before the flower buds open, and are dried for later use[238]. The plant contains the essential oil thymol. In large doses this can cause various health problems such as headaches, tinnitus, vertigo, inhibition of respiration and the circulation[176]. Use with caution[176]. The seed is prescribed in China for the '36 diseases of women'[218]. The root is considered to be beneficial to the circulation and a restorative to women after parturition[218]. It is harvested in the autumn and dried for later use[238]. The herbage, soaked in oil, is applied to the hair as a treatment for dandruff[218].
References More on Medicinal Uses
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Other Uses
References More on Other Uses
Cultivation details
Succeeds in ordinary well-drained but moisture retentive garden soil in sun or part shade[200]. A very polymorphic species[58], it is closely related to E. cannabinum[1]. This species is a member of natural moist grassland flora on river banks in the Kanto District of Japan. Due to urbanization of this area, the habitat is now restricted to a very small area, and the species is endangered[275]. Plants seem to be immune to the predations of rabbits[233].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
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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, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.
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Propagation
Seed - sow spring in a cold frame and only just cover the seed. Prick out the seedlings into individual pots when they are large enough to handle and plant them out into their permanent positions in the summer. Division in spring or autumn[111]. Very easy, the clumps can be replanted direct into their permanent positions.
Other Names
If available other names are mentioned here
Found In
Countries where the plant has been found are listed here if the information is available
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
Thunb.
Botanical References
58200275
Links / References
For a list of references used on this page please go here
Readers comment
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Subject : Eupatorium japonicum
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