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Hypericum forrestii - (Chitt.)N.Robson.

Common Name

Family

Hypericaceae

USDA hardiness

4-8

Known Hazards

None known

Habitats

Open stony situations on hillsides, sometimes beside streams, also at Pinus forest margins at elevations of 1500 - 3000, occasionally to 4000 metres[266].

Range

E. Asia - China to the Himalayas.

Edibility Rating

(0 of 5)

Other Uses

(0 of 5)

Weed Potential

Medicinal Rating

(0 of 5)

Care (info)


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Summary

Physical Characteristics

Hypericum forrestii is a deciduous Shrub growing to 2 m (6ft 7in).
It is hardy to zone (UK) 5. It is in flower from July to September, and the seeds ripen from September to November. 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, prefers well-drained soil and can grow in heavy clay soil. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

H. calcaratum. H. patulum forrestii. H. patulum henryi. non Bean.

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Hedge;

Edible Uses

None known

References

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.

None known

References

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Other Uses

Hedge Hedge

Plants can be grown as an informal hedge[29].

Special Uses

Hedge Hedge

References

Cultivation details

Easily grown in any reasonably good well-drained but moisture retentive soil[1]. Grows well in heavy clay soils. Succeeds in sun or semi-shade but flowers better in a sunny position[200]. Plants are hardy to about -10°c[184]. A very ornamental plant[1]. Plants in this genus are notably resistant to honey fungus[200].

References

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Celsius Fahrenheit:

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Propagation

Seed - sow spring in a greenhouse and only just cover the seed. 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. Cuttings of half-ripe wood 10 - 12 cm with a heel, July/August in a frame. Plant out in the following spring[200]. Cuttings of mature wood, 12 - 17cm with a heel, October/November in a sheltered position outdoors. Plants root by the spring. Good percentage[78].

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 :

Related Plants

Latin Name	Common Name	Habit	Height	Hardiness	Growth	Soil	Shade	Moisture	Edible	Medicinal	Other
Hypericum androsaemum	Tutsan, Sweet-amber, St. Johnswort	Shrub	1.0	5-10	F	LMH	SN	DM	0	1
Hypericum ascyron	Great Saint John's Wort	Perennial	1.5	3-7		LMH	SN	M	1	2
Hypericum attenuatum		Perennial	0.6	-		LMH	SN	DM	1	0
Hypericum bellum		Shrub	1.0	5-9		LMH	SN	M	0	1
Hypericum calycinum	Rose Of Sharon, Aaron's beard, Creeping Aron's Beard St. Johnswort	Shrub	0.3	5-10	F	LMH	FSN	DM	0	0
Hypericum erectum		Perennial	0.6	5-9		LMH	SN	M	1	1
Hypericum hypericoides	St. Andrews Cross	Shrub	1.2	5-9		LM	SN	DM	0	2
Hypericum japonicum	Matted St. John's Wort	Annual/Perennial	0.5	-		LMH	SN	MWe	0	2
Hypericum kamtschaticum		Perennial	0.3	-		LMH	SN	M	1	0
Hypericum monogynum		Shrub	0.7	8-11		LMH	SN	M	0	2
Hypericum patulum	Goldencup St. Johnswort	Shrub	1.0	6-7	M	LMH	SN	M	0	1
Hypericum perforatum	St. John's Wort, Common St. Johnswort	Perennial	0.9	3-7		LMH	SN	M	2	4	2
Hypericum sampsonii		Perennial	0.6	8-11		LMH	SN	M	1	2

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

(Chitt.)N.Robson.

Botanical References

11200266

Links / References

For a list of references used on this page please go here

Readers comment


ir. F.G. van Ogtrop	Wed May 31 2006

I can't find detailed information on the available substances in the cell content. What about the smell of cannabis when touched or wet? It is from the non-edible non-medicinal contaminants, of course: might it be good to smoke?

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