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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
Medicinal Uses
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None known
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Other Uses
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].
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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 :
Expert comment
Author
(Chitt.)N.Robson.
Botanical References
11200266
Links / References
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