A non-drying oil is obtained from the seeds. Refined teaseed oil, made by removing the free fatty acids with caustic soda, then bleaching the oil with Fuller's earth and a sprinkling of bone black, makes an oil suitable for use in manufacture of sanctuary or signal oil for burning purposes, and in all respects is considered a favourable substitute for rapeseed, olive, or lard oils. The oil is different from cottonseed, corn, or sesame oils in that it is a non-drying oil and is not subject to oxidation changes, thus making it very suitable for use in the textile industry; it remains liquid below -18deg.C. A grey dye is obtained from the pink or red petals. The leaves contain 13 - 18% tannin. The leaves also contain quercetin, a dyestuff that, when found in other plants, is much used as a dye. The quantity of quercetin is not given[K].Wood - moderately hard, close and even grained. It is very good for walking sticks.
The leaves are cardiotonic, diuretic, expectorant, stimulant and astringent. They exert a decided influence over the nervous system, giving a feeling of comfort and exhilaration, but also producing an unnatural wakefulness when taken in large doses. They are used internally in the treatment of diarrhoea, dysentery, hepatitis and gastro-enteritis. Tea is reportedly effective in clinical treatment of amoebic dysentery, bacterial dysentery, gastro-enteritis, and hepatitis. It has also been reported to have antiatherosclerotic effects and vitamin P activity. Excessive use, however, can lead to dizziness, constipation, constipation, indigestion, palpitations and insomnia. Externally, they are used as a poultice or wash to treat cuts, burns, bruises, insect bites, ophthalmia, swellings etc. Only the very young leaves and leaf buds are used, these can be harvested throughout the growing season from plants over three years old and are dried for later use.Teabags have been poulticed onto baggy or tired eyes, compressed onto headache, or used to bathe sunburn.
There are approximately 500 seeds per kilo. Cuttings of almost ripe wood, 10 - 15cm with a heel, August/September in a shaded frame. High percentage but slow. Cuttings of firm wood, 7 - 10cm with a heel, end of June in a frame. Keep in a cool greenhouse for the first year.Leaf-bud cuttings, July/August in a frame.
Practical Plants is currently lacking information on propagation instructions of Camellia sinensis. Help us fill in the blanks! Edit this page to add your knowledge.
This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c. It prefers a wet summer and a cool but not very frosty dry winter. The fragrant flowers are very attractive to insects, particularly moths. Plants are not very self-compatible, self-fertilized flowers produce few seeds and these are of low viability. A very ornamental plant, it is widely cultivated in tropical and warm temperate areas for its leaves which are used to make China tea. There are many named varieties and new hardier forms are being produced in China for growing in colder areas of the country. The Chinese form, known as 'Hsüeh-ch'a', is said to grow in areas within the snow limit on the mountains of Lingchiangfu in Yunnan province.The sub-species C. sinensis assamica. (Mast.)Kitam. is a larger plant, growing up to 17 metres tall. It is a more tropical form of the species, is intolerant of frost and does not succeed outdoors in Britain.
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Camellia sinensis. Do you know of an interaction that should be listed here? to add it.
Polycultures & Guilds
There are no polycultures listed which include Camellia sinensis.
This table shows all the data stored for this plant.
- Duke. J. Handbook of Energy Crops - (32202/01/01)
- Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (32202/01/01)
- Reid. B. E. Famine Foods of the Chiu-Huang Pen-ts'ao. Taipei. Southern Materials Centre (32202/01/01)
- Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications ISBN 0-9628087-0-9 (32202/01/01)
- Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (32202/01/01)
- Rottsieper. E.H.W. Vegetable Tannins The Forestal Land, Timber and Railways Co. Ltd. (32202/01/01)
- Gupta. B. L. Forest Flora of Chakrata, Dehra Dun and Saharanpur. Forest Research Institute Press (32202/01/01)
- Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (32202/01/01)
- Chevallier. A. The Encyclopedia of Medicinal Plants Dorling Kindersley. London ISBN 9-780751-303148 (32202/01/01)
- Grieve. A Modern Herbal. Penguin ISBN 0-14-046-440-9 (32202/01/01)
- Kariyone. T. Atlas of Medicinal Plants. ()
- Emboden. W. Narcotic Plants Studio Vista ISBN 0-289-70864-8 (32202/01/01)
- Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). Council of Scientific and Industrial Research, New Delhi. (32202/01/01)
- Moerman. D. Native American Ethnobotany Timber Press. Oregon. ISBN 0-88192-453-9 (32202/01/01)
- Dirr. M. A. and Heuser. M. W. The Reference Manual of Woody Plant Propagation. Athens Ga. Varsity Press ISBN 0942375009 (32202/01/01)
- Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co (32202/01/01)
- Bird. R. (Editor) Growing from Seed. Volume 3. Thompson and Morgan. (32202/01/01)
- Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray (32202/01/01)
- F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (32202/01/01)
- Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (32202/01/01)
- Taylor. J. The Milder Garden. Dent (32202/01/01)
- Grey-Wilson. C. & Matthews. V. Gardening on Walls Collins ISBN 0-00-219220-0 (32202/01/01)
- Phillips. R. & Rix. M. Conservatory and Indoor Plants Volumes 1 & 2 Pan Books, London. ISBN 0-330-37376-5 (32202/01/01)
- Stuart. Rev. G. A. Chinese Materia Medica. Taipei. Southern Materials Centre ()
"image:Camellia sinensis Japan.JPG|248px" cannot be used as a page name in this wiki.