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Summary
Physical Characteristics
Osmanthus delavayi is an evergreen Shrub growing to 3.5 m (11ft) by 3.5 m (11ft) at a slow rate.
See above for USDA hardiness. It is hardy to UK zone 7. It is in leaf all year, in flower in April, and the seeds ripen in September. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in very alkaline soils.
It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Siphonosmanthus delavayi.
Plant Habitats
Woodland Garden Sunny Edge; Dappled Shade; Hedge;
Edible Uses
References More on Edible Uses
Medicinal Uses
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None known
References More on Medicinal Uses
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Other Uses
References More on Other Uses
Cultivation details
Easily grown in any well-drained soil in sun or part shade[184], but flowering more freely in a sunny position[182]. Thrives in chalky conditions[200]. Dislikes unduly exposed positions[11] and requires shelter from freezing winds[200]. Hardy to about -15°c[184]. A very ornamental plant[1], the flowers are sweetly scented[182]. It is fairly slow-growing[219]. One report says that fruits are only occasionally produced in Britain[182] whilst another says that plants self-sow in Cornwall[11]. Plants are very amenable to pruning and can be kept quite small by cutting them back after flowering.
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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Plant Propagation
Seed - best sown as soon as it is ripe in a coldframe[200]. Stored seed probably germinates best if it is given 3 months warm then 3 months cold stratification before sowing[113]. The seed usually takes 6 - 18 months to germinate, it should be pricked out into individual pots when it is large enough to handle. Grow the plants on for their first winter in the greenhouse and plant them out in early summer. Cuttings of half-ripe wood taken at the end of July, in a frame with bottom heat[11]. Cuttings of almost ripe wood, 7 - 12cm with a heel, September/October in a cold frame. A good percentage. Plant out in the spring 18 months later[78]. Layering in spring[200] or autumn[78]. Partially sever the layer leads in the following late summer and plant out in the autumn. High percentage[78].
Other Names
If available other names are mentioned here
Native Range
TEMPERATE ASIA: China (Guizhou Sheng, Sichuan Sheng, Yunnan Sheng)
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
Franch.
Botanical References
11200266
Links / References
For a list of references used on this page please go here
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Subject : Osmanthus delavayi
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