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Hypericum sampsonii - Hance.

Common Name
Family Hypericaceae
USDA hardiness 8-11
Known Hazards There is a report that use of this plant can harm the foetus of pregnant females[147].
Habitats Wasted slopes and roadsides in China[147]. Thickets, streamsides, grassy places, roadsides and cultivated margins at elevations of 100 - 1700 metres[266].
Range E. Asia - China, Japan, India.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Half Hardy Moist Soil Semi-shade Full sun
Hypericum sampsonii


Hypericum sampsonii

 

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Summary


Physical Characteristics

 icon of manicon of flower
Hypericum sampsonii is a PERENNIAL growing to 0.6 m (2ft).
See above for USDA hardiness. It is hardy to UK zone 9. It is in flower from July to August, and the seeds ripen from August to October. 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 soil.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Leaves
Edible Uses:

Edible young leaves and plant tops[105, 177].

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  Depurative  Emmenagogue  Haemolytic  Vermifuge

The plant is anodyne, anticoagulant, depurative, emmenagogue, haemolytic, vermifuge[147, 218]. It stimulates the circulation and can also harm the foetus[147]. Use with caution.

References   More on Medicinal Uses

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Other Uses

None known

Special 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[200]. This plant is unlikely to be very hardy in Britain, though it might succeed outdoors in the milder areas of the country[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:

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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

Seed - sow spring in a greenhouse. Germination usually takes place within 1 - 3 months at 10°c. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Division in spring[111]. Larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.

Other Names

If available other names are mentioned here

Native Range

TEMPERATE ASIA: China (Anhui Sheng, Fujian Sheng, Gansu Sheng, Guangdong Sheng, Guangxi Zhuangzu Zizhiqu, Guizhou Sheng, Henan Sheng, Hubei Sheng, Hunan Sheng, Jiangsu Sheng, Jiangxi Sheng, Shaanxi Sheng, Sichuan Sheng, Yunnan Sheng, Zhejiang Sheng), Japan (Kyushu), Taiwan TROPICAL ASIA: Myanmar (north), Vietnam (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 :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Hypericum androsaemumTutsan, Sweet-amber, St. JohnswortShrub1.0 5-10 FLMHSNDM013
Hypericum ascyronGreat Saint John's WortPerennial1.5 3-7  LMHSNM12 
Hypericum attenuatum Perennial0.6 -  LMHSNDM10 
Hypericum bellum Shrub1.0 5-9  LMHSNM012
Hypericum calycinumRose Of Sharon, Aaron's beard, Creeping Aron's Beard St. JohnswortShrub0.3 5-10 FLMHFSNDM003
Hypericum erectum Perennial0.6 5-9  LMHSNM11 
Hypericum forrestii Shrub2.0 4-8  LMHSNM002
Hypericum hypericoidesSt. Andrews CrossShrub1.2 5-9  LMSNDM02 
Hypericum japonicumMatted St. John's WortAnnual/Perennial0.5 -  LMHSNMWe02 
Hypericum kamtschaticum Perennial0.3 -  LMHSNM10 
Hypericum monogynum Shrub0.7 8-11  LMHSNM02 
Hypericum patulumGoldencup St. JohnswortShrub1.0 6-7 MLMHSNM013
Hypericum perforatumSt. John's Wort, Common St. JohnswortPerennial0.9 3-10  LMHSNDM242

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

Hance.

Botanical References

58200

Links / References

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