Practical
Plants

Hypericum sampsonii

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Taxonomy and growth

Life cycle
perennial
Height
0.6 m
Fertility
self fertile
Flower type
hermaphrodite
Pollinators
Insects

Uses

Toxicity

Toxicity warning. The historical record reports a hazard for this plant. Do not use it to decide which parts are safe to eat or use medicinally.

There is a report that use of this plant can harm the foetus of pregnant females[4].

Edible uses

Edible young leaves and plant tops[2][5].

Plant part
Leaves

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

The plant is anodyne, anticoagulant, depurative, emmenagogue, haemolytic, vermifuge[4][7]. It stimulates the circulation and can also harm the foetus[4]. Use with caution.

Product or use
Anodyne
Product or use
Depurative
Product or use
Emmenagogue
Product or use
Haemolytic
Product or use
Vermifuge

Environment

Range
E. Asia - China, Japan, India.
Habitat
Wasted slopes and roadsides in China[4]. Thickets, streamsides, grassy places, roadsides and cultivated margins at elevations of 100 - 1700 metres[8].
Light
full sun
Shade tolerance
light shade
Water
moderate
Hardiness
Zone 9+
Soil textures
sandy, loamy, clay
Soil pH
acid, neutral, alkaline
Drainage
well drained
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

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[3]. 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.

Cultivation

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[6]. This plant is unlikely to be very hardy in Britain, though it might succeed outdoors in the milder areas of the country[6].

References

  1. F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00

    ↩

  2. Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00

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  3. Sanders. T. W. Popular Hardy Perennials. Collingridge 1926-00-00

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  4. ? A Barefoot Doctors Manual. Running Press ISBN 0-914294-92-X

    ↩1↩2↩3↩4

  5. Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984-00-00 ISBN 3874292169

    ↩

  6. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

    ↩1↩2

  7. Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. 1985-00-00 ISBN 0-917256-20-4

    ↩

  8. Flora of China 1994-00-00 http://flora.huh.harvard.edu/china/

    ↩

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