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Rosa chinensis - Jacq.                
                 
Common Name China Rose
Family Rosaceae
Synonyms
Known Hazards There is a layer of hairs around the seeds just beneath the flesh of the fruit. These hairs can cause irritation to the mouth and digestive tract if ingested.
Habitats Not known in a truly wild situation.
Range E. Asia - China.
Edibility Rating  
Medicinal Rating  
Care
Fully Hardy Moist Soil Semi-shade Full sun

Summary       

Physical Characteristics       
 icon of manicon of shrub
Rosa chinensis is a deciduous Shrub growing to 6 m (19ft 8in).
It is hardy to zone 7. It is in flower from Jun to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees.

USDA hardiness zone : Coming soon


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.

Rosa chinensis China Rose


http://commons.wikimedia.org/wiki/File:Rosa_chinensis_1795.jpg
Rosa chinensis China Rose
http://commons.wikimedia.org/wiki/User:Cillas
   
Habitats       
Woodland Garden Sunny Edge; Dappled Shade;
Edible Uses                                         
Edible Parts: Flowers;  Fruit;  Leaves;  Seed;  Stem.
Edible Uses:

The young shoot tips, flower buds and flowers are parboiled and eaten as potherbs or added to soups[177, 179, 183]. Fruit - raw or cooked. The fruit is about 20mm in diameter[200], but there is only a thin layer of flesh surrounding the many seeds[K]. Some care has to be taken when eating this fruit, see the notes above on known hazards. Young peeled shoots can be eaten raw[179]. The seed is a good source of vitamin E, it can be ground and mixed with flour or added to other foods as a supplement[102, 183]. Be sure to remove the seed hairs[102].
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.

Anodyne;  Cancer;  Women's complaints.

The flowers, and to a lesser degree the roots and leaves, are anodyne, emmenagogue and used in the treatment of women's complaints[147]. They regulate menstruation and stimulate blood circulation[147]. The leaves, fruits and roots are decocted and used in the treatment of arthritis, boils, coughs etc[218]. The fruit is applied to sprains, ulcers and wounds[218]. The flower buds are used in the treatment of dysmenorrhoea, poor circulation, stomach pains and swellings[218]. The fruit of many members of this genus is a very rich source of vitamins and minerals, especially in vitamins A, C and E, flavanoids and other bio-active compounds. It is also a fairly good source of essential fatty acids, which is fairly unusual for a fruit. It is being investigated as a food that is capable of reducing the incidence of cancer and also as a means of halting or reversing the growth of cancers[214].
Other Uses
None known
Cultivation details                                         
Succeeds in most soils[11], preferring a circumneutral soil and a sunny position[200]. Grows well in heavy clay soils. Dislikes water-logged soils[200]. Grows well with alliums, parsley, mignonette and lupins[18, 20]. Garlic planted nearby can help protect the plant from disease and insect predation[18, 20]. Grows badly with boxwood[18]. This species is one of the parents of all the modern large, repeat-flowering roses grown in the world today[260]. It is occasionally cultivated for speciality restaurants, there is at least one named variety[183]. There are many named varieties selected for their ornamental value[11]. The flowers are richly scented[245]. Hybridizes freely with other members of this genus[80]. Plants in this genus are notably susceptible to honey fungus[200].
                                                                                 
Propagation                                         
Seed. Rose seed often takes two years to germinate. This is because it may need a warm spell of weather after a cold spell in order to mature the embryo and reduce the seedcoat[80]. One possible way to reduce this time is to scarify the seed and then place it for 2 - 3 weeks in damp peat at a temperature of 27 - 32°c (by which time the seed should have imbibed). It is then kept at 3°c for the next 4 months by which time it should be starting to germinate[80]. Alternatively, it is possible that seed harvested 'green' (when it is fully developed but before it has dried on the plant) and sown immediately will germinate in the late winter. This method has not as yet(1988) been fully tested[80]. Seed sown as soon as it is ripe in a cold frame sometimes germinates in spring though it may take 18 months. Stored seed can be sown as early in the year as possible and stratified for 6 weeks at 5°c[200]. It may take 2 years to germinate[200]. Prick out the seedlings into individual pots when they are large enough to handle. Plant out in the summer if the plants are more than 25cm tall, otherwise grow on in a cold frame for the winter and plant out in late spring. Cuttings of half-ripe wood with a heel, July in a shaded frame. Overwinter the plants in the frame and plant out in late spring[78]. High percentage[78]. Cuttings of mature wood of the current seasons growth. Select pencil thick shoots in early autumn that are about 20 - 25cm long and plant them in a sheltered position outdoors or in a cold frame[78, 200]. The cuttings can take 12 months to establish but a high percentage of them normally succeed[78]. Division of suckers in the dormant season. Plant them out direct into their permanent positions. Layering. Takes 12 months[11].
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Expert comment                                         
 
      
Author                                         
Jacq.
                                                                                 
Botanical References                                         
11200266
                                                                                 
Links / References                                         

  [K] Ken Fern Notes from observations, tasting etc at Plants For A Future and on field trips.

[11]Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement.
A classic with a wealth of information on the plants, but poor on pictures.
[18]Philbrick H. and Gregg R. B. Companion Plants.
Details of beneficial and antagonistic relationships between neighbouring plants.
[20]Riotte. L. Companion Planting for Successful Gardening.
Fairly good.
[78]Sheat. W. G. Propagation of Trees, Shrubs and Conifers.
A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
[80]McMillan-Browse. P. Hardy Woody Plants from Seed.
Does not deal with many species but it is very comprehensive on those that it does cover. Not for casual reading.
[102]Kavasch. B. Native Harvests.
Another guide to the wild foods of America.
[147]? A Barefoot Doctors Manual.
A very readable herbal from China, combining some modern methods with traditional chinese methods.
[177]Kunkel. G. Plants for Human Consumption.
An excellent book for the dedicated. A comprehensive listing of latin names with a brief list of edible parts.
[179]Reid. B. E. Famine Foods of the Chiu-Huang Pen-ts'ao.
A translation of an ancient Chinese book on edible wild foods. Fascinating.
[183]Facciola. S. Cornucopia - A Source Book of Edible Plants.
Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
[200]Huxley. A. The New RHS Dictionary of Gardening. 1992.
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
[214]Matthews. V. The New Plantsman. Volume 1, 1994.
A quarterly magazine, it has articles on Himalayacalamus hookerianus, hardy Euphorbias and an excellent article on Hippophae spp.
[218]Duke. J. A. and Ayensu. E. S. Medicinal Plants of China
Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
[245]Genders. R. Scented Flora of the World.
An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
[260]Phillips. R. & Rix. M. Conservatory and Indoor Plants Volumes 1 & 2
Excellent photos of over 1,100 species and cultivars with habits and cultivation details plus a few plant uses. Many species are too tender for outdoors in Britain though there are many that can be grown outside.

Readers comment                                         
 
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Subject : Rosa chinensis  
             

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