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Summary
Physical Characteristics

Cirsium japonicum is a BIENNIAL/PERENNIAL growing to 0.9 m (3ft).
It is hardy to zone (UK) 6. It is in flower from August to September, and the seeds ripen from September to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies, Lepidoptera (Moths & Butterflies), beetles. The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Habitats
Cultivated Beds;
Edible Uses
Edible Parts: Leaves Oil Root
Edible Uses: Oil
Leaves - cooked[61, 105, 177]. Very palatable in the spring, they are used with the young roots[179].
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.
Antiinflammatory Diuretic Haemostatic Styptic
The roots are anti-inflammatory, diuretic and haemostatic[61, 147, 176, 178]. A decoction of the dried roots is used in the treatment of boils and carbuncles, acute appendicitis, uterine bleeding, haematuria, nose bleeds, haematemesis and traumatic bleeding[147]. The leaf is haemostatic and diuretic[218]. The stem is haemostatic[218].
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Other Uses
Oil
The seed of all species of thistles yields a good oil by expression[4]. No details of potential yields etc are given[K].
Special Uses
Cultivation details
An easily grown plant, succeeding in any ordinary garden soil in a sunny position[200]. Cultivated for cut flowers in Japan[58]. There are some named forms selected for their ornamental value[200].
Temperature Converter
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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 early spring or autumn in situ. Germination usually takes place within 2 - 8 weeks at 20°c[164]. Division in spring or autumn.
Other Names
If available other names are mentioned here
No-azami, Cat thistle, Japanese thistle, Baimaci.
Found In
Countries where the plant has been found are listed here if the information is available
Asia, Australia, China, Japan, Korea, Russia, Taiwan, Tibet, USA Vietnam.
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.
Can be weedy or invasive. Known to be invasive in Arkansas, California, Iowa, USA and South Africa.
Conservation Status
IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed.
Expert comment
Author
DC.
Botanical References
58200266
Links / References
For a list of references used on this page please go here
Readers comment
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Subject : Cirsium japonicum
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