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Hibiscus syriacus - L.

Common Name Rose Of Sharon, Althaea, Shrub Althea, Hardy Hibiscus
Family Malvaceae
USDA hardiness 5-9
Known Hazards None known
Habitats Found wild on mountain slopes, though the original habitat is obscure[74].
Range E. Asia - China to India. Locally naturalized in S. Europe.
Edibility Rating    (4 of 5)
Other Uses    (2 of 5)
Weed Potential Yes
Medicinal Rating    (2 of 5)
Care (info)
Fully Hardy Moist Soil Semi-shade Full sun
Hibiscus syriacus Rose Of Sharon, Althaea, Shrub Althea, Hardy Hibiscus


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Hibiscus syriacus Rose Of Sharon, Althaea, Shrub Althea, Hardy Hibiscus
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Summary

Bloom Color: Blue, Lavender, Pink, Purple, Red, White. Main Bloom Time: Early summer, Late summer, Mid summer. Form: Rounded, Upright or erect.


Physical Characteristics

 icon of manicon of shrub
Hibiscus syriacus is a deciduous Shrub growing to 3 m (9ft) by 2 m (6ft) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 5. It is in flower in September, and the seeds ripen in October. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Althaea frutex.

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Hedge;

Edible Uses

Edible Parts: Flowers  Leaves  Oil  Root
Edible Uses: Oil  Tea

Young leaves - raw or cooked[2, 177, 179, 183]. A very mild flavour, though slightly on the tough side, they make an acceptable addition to the salad bowl[K]. A tea is made from the leaves[2, 177, 240] or the flowers[183]. Flowers - raw or cooked[74, 105, 183]. A mild flavour and mucilaginous texture, they are delightful in salads, both for looking at and for eating[K]. Root - it is edible but very fibrousy[144]. Mucilaginous, without very much flavour[144].

References   More on Edible Uses

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.
Anthelmintic  Antiphlogistic  Antipruritic  Demulcent  Diuretic  Dysentery  Emollient  Expectorant  
Febrifuge  Ophthalmic  Skin  Stomachic  Styptic

The leaves are diuretic, expectorant and stomachic[218, 240]. A decoction of the flowers is diuretic, ophthalmic and stomachic[147, 178, 218]. It is also used in the treatment of itch and other skin diseases[240], dizziness and bloody stools accompanied by much gas[147]. The bark contains several medically active constituents, including mucilage, carotenoids, sesquiterpenes and anthocyanidins[279]. A decoction of the root bark is antiphlogistic, demulcent, emollient, febrifuge, haemostatic and vermifuge[218, 240]. It is used in the treatment of diarrhoea, dysentery, abdominal pain, leucorrhoea, dysmenorrhoea[240, 279] and dermaphytosis[147].

References   More on Medicinal Uses

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Other Uses

Dye  Fibre  Hair  Hedge  Hedge  Oil

A low quality fibre is obtained from the stems. It is used for making cordage and paper[74]. The seed contains about 25% oil[74]. No further details are given, but it is likely to be edible. A hair shampoo is made from the leaves[74]. A blue dye is obtained from the flowers[168]. This species is planted as a hedge in S. Europe[50].

Special Uses

Food Forest  Hedge  Hedge

References   More on Other Uses

Cultivation details

Landscape Uses:Border, Container, Foundation, Standard, Seashore, Specimen. Prefers a well-drained humus rich fertile soil in a sheltered position in full sun[200]. Succeeds in any soil of good or moderate quality[11]. Dislikes shade or badly drained soils[11]. Plants grow best with their roots in cool moist soil and their tops in a hot sunny position. This species is hardy to about -20°c[200] but plants only really succeed in the warmer counties of Britain because of their late flowering habit[184]. When planted in colder areas of the country, they will need protection for the first few winters[200]. The flowers only open in sunny weather[219]. Plants rarely require pruning[219], though they respond well to pruning and trimming and this is best carried out in the spring or just after flowering[219]. Plants are late coming into leaf, usually around the end of May or early June[182]. A very ornamental plant[1], there are many named varieties[182]. Special Features:Attracts birds, Not North American native, Naturalizing, Attracts butterflies, Blooms are very showy. The plant is heat tolerant in zones 9 through 1. (Plant Hardiness Zones show how well plants withstand cold winter temperatures. Plant Heat Zones show when plants would start suffering from the heat. The Plant Heat Zone map is based on the number of "heat days" experienced in a given area where the temperature climbs to over 86 degrees F (30°C). At this temperature, many plants begin to suffer physiological damage. Heat Zones range from 1 (no heat days) to 12 (210 or more heat days). For example Heat Zone. 11-1 indicates that the plant is heat tolerant in zones 11 through 1.) For polyculture design as well as the above-ground architecture (form - tree, shrub etc. and size shown above) information on the habit and root pattern is also useful and given here if available. The plant growth habit is multistemmed with multiple stems from the crown [1-2].

References   Carbon Farming Information and Carbon Sequestration Information

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Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

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Propagation

Seed - sow early spring in a greenhouse. Germination is usually fairly quick. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in the greenhouse for their first year. Plant them out into their permanent positions in late spring or early summer. Some reports say that the seed can be sown in situ outside and that it gives a good rate of germination[78, 80, 113]. Cuttings of half-ripe wood, July/August in a frame. Good percentage[113]. Cuttings of mature wood, early autumn in a frame. Good percentage[113]. Layering in mid summer to early autumn[1].

Other Names

If available other names are mentioned here

Chaba, Gurhal, Kembang sepatu mawar, Kembang sepatu saro, Mu jin, Shrubby Althæa, Swet jaba, Thon-ban-hla, Woody Hibiscus,

Native Plant Search

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Found In

Countries where the plant has been found are listed here if the information is available

Africa, Asia, Australia, China*, East Africa, Europe, Fiji, France, Greece, Hawaii, India, Indochina, Italy, Marquesas, Mediterranean, Mozambique, Myanmar, Nepal, Pacific, Pakistan, Portugal, SE Asia, Spain, Taiwan, Tasmania, Thailand, USA, Vietnam,

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 :

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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.

 

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Author

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Botanical References

5074200

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