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Allium validum - S.Watson.

Common Name Swamp Onion, Pacific onion
Family Alliaceae
USDA hardiness 7-10
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].
Habitats Swampy meadows at medium to high elevations in the mountains[60].
Range South-western N. America - Idaho to California.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Frost Hardy Moist Soil Wet Soil Full sun
Allium validum Swamp Onion, Pacific onion


Allium validum Swamp Onion, Pacific onion

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Summary


Physical Characteristics

 icon of manicon of bulb
Allium validum is a BULB growing to 0.6 m (2ft).
It is hardy to zone (UK) 8. It is in flower from Jul to August. The species is hermaphrodite (has both male and female organs) and are pollinated by Bees, insects. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist or wet soil.

Synonyms

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

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.



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].

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 tolerates much wetter soils than most members of the genus but it dislikes winters with alternating periods of damp and cold and no snow cover, so it is best given a damp though well-drained soil[203]. It requires plenty of moisture in the growing season[203]. This species is not hardy in the colder areas of Britain, it tolerates temperatures down to between -5 and -10°c[200]. The bulbs should be planted fairly deeply[1]. 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.

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

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Allium condensatum 32
Allium cupanii 32
Allium douglasiiDouglas' Onion32
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Allium flavumSmall Yellow Onion, Ornamental Onion22
123

 

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Expert comment

Author

S.Watson.

Botanical References

60200

Links / References

For a list of references used on this page please go here

Readers comment

Tel Paul   Fri Jul 20 2007

They grow like wildfire where I am... I've been searching the net for days and Im pretty sure this is the exact species I've got. They're pretty tasty raw or cooked, and Im going to try making some dry powder too. If anyone is interested in ordering any of these onions, please dont hesitate to contact me. [email protected]

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Subject : Allium validum  
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