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Allium bisceptrum - Watson.

Aspen Onion

Author	Watson.	Botanical references	60, 200
Family	Alliaceae	Genus	Allium
Synonyms
Known Hazards	Although no individual reports regarding this species have been seen, there have been cases of poisoning caused by the consumption, in large quantities and by some mammals, of certain members of this genus. Dogs seem to be particularly susceptible[76].
Range	Western N. America - Oregon to California.
Habitat	Meadows and aspen groves, occasionally on open slopes[60]
Edibility Rating	3 (1-5)	Medicinal Rating	2 (1-5)

Physical Characteristics

Bulb growing to 0.3m.

The plant prefers light (sandy) and medium (loamy) soils and requires well-drained soil. The plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It requires moist soil.

Habitats

Cultivated Beds;

Edible Uses

Edible Parts: Flowers; Leaves; Root; Seed.

Bulb - raw or cooked[105, 161, 177, 257]. They were usually harvested in spring or early summer[257]. The bulbs are 10 - 15mm wide[200]. Leaves - raw or cooked. Used as a relish[257]. Flowers - raw. Used as a garnish on salads. The seed heads can be placed in hot ashes for a few minutes, then the seeds extracted and eaten[257].

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.

Appetizer.

The plant juice has been used as an appetite restorer[257]. Although no other specific mention of medicinal uses has been seen for this species, members of this genus are in general very healthy additions to the diet. They contain sulphur compounds (which give them their onion flavour) and when added to the diet on a regular basis they help reduce blood cholesterol levels, act as a tonic to the digestive system and also tonify the circulatory system[K].

Other Uses

Repellent.

The juice of the plant is used as a moth repellent. The whole plant is said to repel insects and moles[20].

Cultivation details

Prefers a sunny position in a light well-drained soil[1]. This species is only hardy in the milder areas of the country, it should tolerate temperatures down to between -5 and -10°c[200]. The bulbs should be planted fairly deeply[1]. Most members of this genus are intolerant of competition from other growing plants[203]. Grows well with most plants, especially roses, carrots, beet and chamomile, but it inhibits the growth of legumes[18, 20, 54]. This plant is a bad companion for alfalfa, each species negatively affecting the other[201]. Members of this genus are rarely if ever troubled by browsing deer[233].

Propagation

Seed - sow spring in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle - if you want to produce clumps more quickly then put three plants in each pot. Grow them on in the greenhouse for at least their first winter and plant them out into their permanent positions in spring once they are growing vigorously and are large enough. Division in spring. The plants divide successfully at any time in the growing season, pot up the divisions in a cold frame or greenhouse until they are growing well and then plant them out into their permanent positions.

Links

References

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

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).

[18] Philbrick H. and Gregg R. B. Companion Plants. Watkins 1979
Details of beneficial and antagonistic relationships between neighbouring plants.

[20] Riotte. L. Companion Planting for Successful Gardening. Garden Way, Vermont, USA. 1978 ISBN 0-88266-064-0
Fairly good.

[54] Hatfield. A. W. How to Enjoy your Weeds. Frederick Muller Ltd 1977 ISBN 0-584-10141-4
Interesting reading.

[60] Hitchcock. C. L. Vascular Plants of the Pacific Northwest. University of Washington Press 1955
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.

[76] Cooper. M. and Johnson. A. Poisonous Plants in Britain and their Effects on Animals and Man. HMSO 1984 ISBN 0112425291
Concentrates mainly on the effects of poisonous plants to livestock.

[105] Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976
The most comprehensive guide to edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.

[161] Yanovsky. E. Food Plants of the N. American Indians. Publication no. 237. U.S. Depf of Agriculture. 0
A comprehensive but very terse guide. Not for the casual reader.

[177] Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984 ISBN 3874292169
An excellent book for the dedicated. A comprehensive listing of latin names with a brief list of edible parts.

[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

[201] Allardice.P. A - Z of Companion Planting. Cassell Publishers Ltd. 1993 ISBN 0-304-34324-2
A well produced and very readable book.

[203] Davies. D. Alliums. The Ornamental Onions. Batsford 1992 ISBN 0-7134-7030-5
Covers about 200 species of Alliums. A very short section on their uses, good details of their cultivation needs.

[233] Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. 1990 ISBN 0 460 86048 8
A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.

[257] Moerman. D. Native American Ethnobotany Timber Press. Oregon. 1998 ISBN 0-88192-453-9
Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.

Readers Comments

Plants for a Future does not verify the accuracy of reader comments, use at your own risk. In particular Plants For A Future can not take any responsibility for any adverse effects from the use of plants. You should always consult a professional before using plants medicinally.

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