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Rhaphiolepis umbellata - (Thunb.)Makino.

Common Name Japanese Hawthorn
Family Rosaceae
USDA hardiness 7-10
Known Hazards None known
Habitats Thickets near the seashore, C. and S. Japan[58].
Range E. Asia - Japan.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Frost Hardy Moist Soil Full sun
Rhaphiolepis umbellata Japanese Hawthorn


http://commons.wikimedia.org/wiki/User:KENPEI
Rhaphiolepis umbellata Japanese Hawthorn
http://commons.wikimedia.org/wiki/User:KENPEI

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Summary


Physical Characteristics

 icon of manicon of shrub
Rhaphiolepis umbellata is an evergreen Shrub growing to 2.5 m (8ft) by 2.5 m (8ft) at a slow rate.
It is hardy to zone (UK) 8. It is in leaf 12-Jan It is in flower from Apr to May, and the seeds ripen from Sep to October. The species is hermaphrodite (has both male and female organs) and are pollinated by Insects. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil. The plant can tolerate maritime exposure.

Synonyms

R. japonica. R. ovata. Laurus umbellata.

Habitats

Dappled Shade;  Hedge;  Hedge;  Sunny Edge;  Woodland Garden.

Thickets near the seashore, C. and S. Japan[58].

Edible Uses

Edible Parts: Seed.
Edible Uses:

Seed - used as a flour[105]. A famine food, they are only used when all else fails[177].

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

Other Uses

Dye;  Hedge;  Hedge.

Plants can be used for informal hedging in areas that are frost free or almost so[200]. A brown dye is obtained from the bark[46, 61].

Cultivation details

Requires a well-drained moisture retentive fertile loam or peaty soil in a warm sheltered sunny position[11, 200]. Prefers a position in light shade[202]. An easily grown plant but it is intolerant of dry cold[184]. Judging by its habitat, it should be fairly tolerant of maritime exposure[58]. Plants are tolerant of sea spray[245]. Tolerating temperatures down to about -15°c[200], it is normally hardy at Kew[1]. A polymorphic species[58], there are some named varieties selected for their ornamental value[200]. The plant bears honey-scented hawthorn-like blossoms[245]. Plants do not require pruning[182]. They are of slow to moderate growth rate[202]. Plants resent root disturbance and so are best grown in pots and then planted out into their permanent positions as soon as possible[200].

Propagation

Seed - best sown as soon as it is ripe in a shady position in a warm greenhouse[78]. Stored seed should be sown in February/March in a warm greenhouse[78]. Germination is variable[78]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least 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, 5cm with a heel, September/October in a frame. Fair percentage[78, 113]. Layering[200].

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

 

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Expert comment

Author

(Thunb.)Makino.

Botanical References

1158200

Links / References

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

Readers comment

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Subject : Rhaphiolepis umbellata  
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