Aesculus chinensis
| Aesculus chinensis | |
| Light: |   |
| Moisture: |  |
| Hardiness: | 6 |
| Soil pH: | 5.6-8.4 |
| Height: | 82' |
| Width: | 33' |
| Speed: | Slow |
| Blooms: | Mid Summer |
| Open Woods Forest | |
| Native to: | |
| Edible Rating: |  |
| Medicinal Rating: |  |
| Tea: | Yes |
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Aesculus chinensis (common name: chinese horse chestnut)
Propagation: Seed - best sown outdoors or in a cold frame as soon as it is ripe[1][2]. The seed germinates almost immediately and must be given protection from severe weather[3]. The seed has a very limited viability and must not be allowed to dry out. Stored seed should be soaked for 24 hours prior to sowing and even after this may still not be viable[2][4]. It is best to sow the seed with its 'scar' downwards[3]. If sowing the seed in a cold frame, pot up the seedlings in early spring and plant them out into their permanent positions in the summer.
Cultivation: Prefers a deep loamy well-drained soil but is not too fussy[1].
Plants grow best in eastern and south-eastern areas of England, probably needing a continental climate in order to thrive[1][5]. Although the trees are very hardy when dormant, the new growth can be damaged by late spring frosts[1].
Most members of this genus transplant easily, even when fairly large[1].
Range: E. Asia - N. China.
Habitat: Mountains of Szechwan[6]
Edibility: Seed - cooked. It can be dried and ground into a powder and used as a gruel. The seed is quite large, it can be 3cm in diameter, and is easily harvested. Unfortunately it is also rich in saponins, these must be removed before it can be used as a food and this process also removes many of the minerals and vitamins, leaving behind mainly starch. See also the notes above on toxicity.
The following notes apply to A. californica, but are probably also relevant here:-
The seed needs to be leached of toxins before it becomes safe to eat - the Indians would do this by slow-roasting the nuts (which would have rendered the saponins harmless) and then cutting them into thin slices, putting them into a cloth bag and rinsing them in a stream for 2 - 5 days[7].
Medicinal: The seed is antirheumatic and emetic[6][8]. The sweet tasting seed is said to be used in the treatment of contracted limbs that are due to palsy or rheumatism[6][8]. It is also used in the treatment of stomach aches[8].
Usage: Saponins in the seed are used as a soap substitute[9]. The saponins can be easily obtained by chopping the seed into small pieces and infusing them in hot water. This water can then be used for washing the body, clothes etc. Its main drawback is a lingering odour of horse chestnuts[K].
Pollinators: Bees
Soil: Can grow in light, medium, and heavy soils.
Drainage: Prefers well drained soil.
Seed Ripens: Early Fall
Flower Type: Hermaphrodite
Known Hazards: The seed is rich in saponins. Although poisonous, saponins are poorly absorbed by the human body and so most pass through without harm. Saponins are quite bitter and can be found in many common foods such as some beans. They can be removed by carefully le
Links
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
- ↑ 2.0 2.1 McMillan-Browse, Philip. Hardy Woody Plants from Seed. Grower Books, 1985.
- ↑ 3.0 3.1 Royal Horticultural Society. The Plantsman Vol. 4. 1982 - 1983. Royal Horticultural Society, 1982.
- ↑ Dirr, Michael and Charles Heuser. The Reference Manual of Woody Plant Propagation. Athens Ga. Varsity Press, 1987.
- ↑ Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ 6.0 6.1 6.2 Stuart, George. Chinese Materia Medica. Taipei Southern Materials Centre.
- ↑ Weiner, Michael. Earth Medicine, Earth Food. Ballantine Books, 1980.
- ↑ 8.0 8.1 8.2 Duke, James and Edward Ayensu. Medicinal Plants of China. Reference Publications, 1985.
- ↑ Buchanan, Rita. A Weavers Garden.