Swamp Onion, Pacific onion

Allium validum

Physical Characteristics

Allium validum is a BULB growing to 0.6 m (2ft). 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 or wet soil.

Distribution

South-western N. America - Idaho to California.

Habitats

Bog Garden; Cultivated Beds;

Edible Uses

Edible Parts: Flowers Leaves Root Edible Uses: Bulb - raw or cooked[257]. The bulb is somewhat fibrous but is very acceptable as a flavouring in soups and stews[183]. The bulb is fairly large, up to 5cm in diameter, and is produced in clusters[200]. The plant has thick iris-like rhizomes[203]. Leaves - raw or cooked. Flowers - raw. Used as a garnish on salads.

Medicinal Uses

Although no 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 very large quantities and by some mammals, of certain members of this genus. Dogs seem to be particularly susceptible[76].