Daphne bholua
| Daphne bholua | |
| Light: |    |
| Moisture: |   |
| Hardiness: | 8 |
| Soil pH: | 5.6-8.4 |
| Evergreen | |
| Height: | 7' |
| Width: | 5' |
| Blooms: | Mid Winter-Mid Spring |
| Open Woods Forest | |
| Native to: | |
| Medicinal Rating: | |
| Tea: | Yes |
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Daphne bholua
Propagation: Seed - best sown in a greenhouse as soon as it is ripe with the pot sealed in a polythene bag to hold in the moisture. Remove this bag as soon as germination takes place[1]. The seed usually germinates better if it is harvested 'green' (when it has fully developed but before it dries on the plant) and sown immediately. Germination should normally take place by spring, though it sometimes takes a further year. Stored seed is more problematic. It should be warm stratified for 8 - 12 weeks at 20°c followed by 12 - 14 weeks at 3°c. Germination may still take another 12 months or more at 15°c[1]. Prick out the seedlings into individual pots as soon as they are large enough to handle. Grow the plants on in the greenhouse for their first winter and then plant out in spring after the last expected frosts.
Cuttings of half-ripe wood with a heel, June/July in a frame[2].
Division of suckers[2].
Layering.
Cultivation: Prefers a cool lime-free well-drained sandy loam and a sunny position[3][4]. Succeeds in neutral soils[4] and tolerates partial shade[5]. Plants also succeed in quite deep shade[6]. At least some forms, especially the sub-species D. bholua glacialis.(see below) tolerate alkaline soils[7]. Flowers well when grown in dry shade[7]. Likes plenty of moisture in the growing season[4]. Grows well in London, tolerating atmospheric pollution[7].
Said to be hardy to about -5°c[5], plants succeed outdoors in southern England, but are defoliated in severe winters[4]. Plants at higher altitudes in its native range are often deciduous whilst plants from lower altitudes are evergreen but less hardy[8]. A very variable and very ornamental species[3][5], the cultivars 'Ghurka' (deciduous) and 'Jacqueline Postill' (evergreen) are more hardy than the type[9][5]. One report says that the cultivar 'Ghurka' is part of the deciduous sub-species D. bholua glacialis. (W.W.Smith.&Cave.)Burtt. and that it can tolerate temperatures down to about -10°c[7].
The flowers are fragrant[10].
Because it flowers in the winter, this species seldom produces much seed in Britain unless it is hand-pollinated[2].
Plants often sucker and form clumps in the wild[2].
Plants are resentful of root disturbance and should be planted into their permanent positions as soon as possible[11].
Range: E. Asia - Himalayas - Uttar Pradesh to S.W. China.
Habitat: Clearings in oak and rhododendron forests and shrubberies to 3100 metres[12]. Moist shady places under trees at elevations of 1000 - 3200 metres in Nepal[10].
Medicinal: The juice of the roots, combined with molasses, is used in the treatment of fevers and intestinal problems[10].
A decoction of the bark is used to treat fevers[10].
The powdered seeds are anthelmintic[10].
Usage: A very good quality paper is made from the inner bark[4][13][12][14][10]. It is one of the principle sources of hand made paper in Nepal[10].
The fibre in the inner bark can be used to make rope[15][10].
Pollinators: Bees, flies, lepidoptera
Soil: Can grow in medium and heavy soils.
Drainage: Prefers well drained soil.
Pollution: Tolerates environmental pollution.
In Leaf: Evergreen
Flower Type: Hermaphrodite
Known Hazards: All parts of the plant are poisonous[16]. Skin contact with the sap can cause dermatitis in some people[5].
Also Known As: D. cannabina. pro parte. D. papyrifera.
Links
References
- ↑ 1.0 1.1 Bird, Alfred. Growing from Seed Volume 4. Thompson and Morgan, 1990.
- ↑ 2.0 2.1 2.2 2.3 Matthews, Victoria. The New Plantsman Volume 1. Royal Horticultural Society, 1994.
- ↑ 3.0 3.1 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
- ↑ 4.0 4.1 4.2 4.3 4.4 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
- ↑ 5.0 5.1 5.2 5.3 5.4 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ Grey-Wilson, Christopher and Victoria Matthews. Gardening on Walls. Collins, 1983.
- ↑ 7.0 7.1 7.2 7.3 Phillips, Roger and Martyn Rix. Shrubs. Pan Books, 1989.
- ↑ Taylor, Jane. The Milder Garden. Dent, 1990.
- ↑ Thomas, Graham. Ornamental Shrubs, Climbers and Bamboos. Murray, 1992.
- ↑ 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 Manandhar, Narayan. Plants and People of Nepal. Timber Press, 2002.
- ↑ Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
- ↑ 12.0 12.1 Polunin, Oleg and Adam Stainton. Flowers of the Himalayas. Oxford Universtiy Press, 1984.
- ↑ Uphof, Johannes. Dictionary of Economic Plants. Weinheim, 1959.
- ↑ Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
- ↑ Gamble, James. A Manual of Indian Timbers. Bishen Singh Mahendra Pal Singh, 1972.
- ↑ Cooper, Marion. Poisonous Plants in Britain and their Effects on Animals and Man. The Stationery Office, 1984.