Aspen Onion, Twincrest onion

Allium bisceptrum

Physical Characteristics

Allium bisceptrum is a BULB growing to 0.3 m (1ft). See above for USDA hardiness. It is hardy to UK zone 8. It is in flower from July to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, insects. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist soil.

Distribution

Western N. America - Oregon to California.

Habitats

Cultivated Beds;

Edible Uses

Edible Parts: Flowers Leaves Root Seed Edible Uses: 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]. The bulbs are edible raw or cooked and have a pungent onion flavor. They can be roasted or boiled. Leaves may be eaten fresh or cooked and used in the same way as cultivated chives [2-3].

Medicinal Uses

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].

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].