Hovenia dulcis
| Hovenia dulcis | |
| Light: |  |
| Moisture: |  |
| Hardiness: | 6 |
| Soil pH: | 5.6-8.4 |
| Height: | 33' |
| Width: | 23' |
| Blooms: | Mid Summer |
| Native to: | |
| Edible Rating: |  |
| Medicinal Rating: |  |
| Tea: | Yes |
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Hovenia dulcis (common name: japanese raisin tree)
Propagation: Seed - germinates freely if sown as soon as it is ripe in a cold frame[1]. Stored seed should be scarified and sown in early spring[2], it may not germinate for a year. Prick out the seedlings into individual pots when large enough to handle and grow on for at least their first winter in a greenhouse. Plant out in late spring after the last expected frosts and give some winter protection for their first couple of years outdoors.
Cuttings of half-ripe wood, July/August in a frame[1].
Cuttings of mature wood, late autumn in a frame[1].
Cultivation: Grows well in a fertile sandy loam in a sunny position[1].
Although the dormant plant is hardy to at least -15°c in Britain, it really prefers a continental climate to fully ripen its wood, it is then hardy to about -25°c[1]. The shoot tips are sometimes damaged by winter frosts in Britain[3] and the young growth in spring can also be damaged by late frosts[K].
The Japanese raisin tree is said to grow well in Cornwall[4], though our experience of this plant so far (1995) is that it is very difficult to establish. Perhaps older plants are as hardy as the reports above suggest, but younger plants are quite tender and often die in their first few winters outdoors[K].
The Japanese raisin tree is cultivated for its edible fruit in Japan.
The small white flowers are scented and are produced in terminal cymes[5].
Range: E. Asia - China to the Himalayas.
Habitat: Plains and mountains to 2000 metres in W. China[6].
Edibility: Fruit - raw or cooked[7][8][9]. They can be dried when they have the sweet flavour and texture of raisins and can be used similarly[10]. The fruit is sweet and fragrant[11][12] with a pear-like flavour[13]. Dry and sub-acid[14]. It is not a true fruit but a swollen receptacle[1]. The fruit is up to 3cm long[7], it contains 11.4% glucose, 4.7% fructose and 12.6% sucrose[13].
A sweet extract of the seed, boughs and young leaves is used as a substitute for honey[10]. The seed contains 15% protein and 7.8% fat[13].
Medicinal: Antispasmodic, febrifuge, laxative[12][15].
The fruit is antispasmodic, febrifuge, laxative and diuretic[13].
The seeds are diuretic and are used in the treatment of alcohol overdose[13]. The seeds are used to relieve intoxication due to wine[16].
The stem bark is used in the treatment of rectal diseases[13].
Soil: Can grow in light and medium soils.
Flower Type: Hermaphrodite
Also Known As: H. acerba. H. inequalis.
Links
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ Dirr, Michael and Charles Heuser. The Reference Manual of Woody Plant Propagation. Athens Ga. Varsity Press, 1987.
- ↑ Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
- ↑ Thurston, Edgar. Trees and Shrubs in Cornwall. Cambridge University Press, 1930.
- ↑ Genders, Roy. Scented Flora of the World. Robert Hale, 1994.
- ↑ Wilson, Ernest and Charles Sargent. Plantae Wilsonianae.
- ↑ 7.0 7.1 Hedrick, Ulysses. Sturtevant's Edible Plants of the World. Dover Publications, 1972.
- ↑ Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
- ↑ Gupta, Basant. Forest Flora of Chakrata, Dehra Dun and Saharanpur. Forest Research Institute Press, 1945.
- ↑ 10.0 10.1 Facciola, Stephen. Cornucopia - A Source Book of Edible Plants. Kampong Publications, 1990.
- ↑ Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
- ↑ 12.0 12.1 Revolutionary Health Committee of Hunan Province. A Barefoot Doctors Manual. Running Press.
- ↑ 13.0 13.1 13.2 13.3 13.4 13.5 Duke, James and Edward Ayensu. Medicinal Plants of China. Reference Publications, 1985.
- ↑ Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
- ↑ Stuart, George. Chinese Materia Medica. Taipei Southern Materials Centre.
- ↑ Chopra, R. Glossary of Indian Medicinal Plants. Council of Scientific and Industrial Research, New Delhi, 1986.