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Summary
Physical Characteristics
Hypericum japonicum is a ANNUAL/PERENNIAL growing to 0.5 m (1ft 8in). It is in flower from July to August, and the seeds ripen from August to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile.
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 or wet soil.
UK Hardiness Map
US Hardiness Map
Synonyms
H. calycatum. H. pusillum.
Plant Habitats
Bog Garden;
Edible Uses
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.
Antiphlogistic Depurative Dysentery Febrifuge Vulnerary
The plant is alterative, antiphlogistic, astringent, depurative, febrifuge and vulnerary[147, 218, 240]. It is decocted with water for use[218]. It is used in the treatment of asthma and dysentery, acute hepatitis, pain in the liver region, appendicitis, boils and abscesses and has also been used as a styptic[147, 240, 272]. The plant has also shown antitumour activity[218].
References More on Medicinal Uses
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Other Uses
References More on Other Uses
Cultivation details
Easily grown in any reasonably good well-drained but moisture retentive soil[1]. Succeeds in sun or semi-shade but flowers better in a sunny position. This species is found in the wild in wet soils. A very variable species[266].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
Fahrenheit:
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Plant Propagation
Seed - sow spring in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in late spring. It might also be worthwhile trying an outdoor sowing in April.
Other Names
If available other names are mentioned here
Native Range
TEMPERATE ASIA: China (Anhui Sheng, Fujian Sheng, Guangdong Sheng, Guangxi Zhuangzu Zizhiqu, Guizhou Sheng, Hainan Sheng, Hubei Sheng, Hunan Sheng, Jiangxi Sheng, Sichuan Sheng, Yunnan Sheng, Zhejiang Sheng), Hong Kong, Japan (Hokkaidô (south), Honshu, Kyushu, Ryukyu Islands, Shikoku), Korea, South, Taiwan TROPICAL ASIA: Bhutan, India (Sikkim, Assam, Himachal Pradesh, Manipur, Meghalaya, Nagaland, Odisha, Tamil Nadu, Tripura, Uttar Pradesh, West Bengal, Arunachal Pradesh), Sri Lanka, Nepal, Indonesia (Papua), Papua New Guinea, Laos, Myanmar, Thailand, Vietnam, Indonesia (Kalimantan, Sulawesi, Jawa, Lesser Sunda Islands, Sumatera), Malaysia, Philippines AUSTRALASIA: Australia (Tasmania, New South Wales (southeast), Queensland (southeast), South Australia (southeast), Victoria, Western Australia (southwest)), New Zealand (North Island, South Island, Stewart Island)
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
58200266
Links / References
For a list of references used on this page please go here
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Subject : Hypericum japonicum
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