Allium validum S. Watson
Pacific onion, Swamp onion, Tall swamp onion
Liliaceae (Lily Family)
USDA Symbol: ALVA
From vigorous rhizomes occur large patches of flat, upright leaves, and flowering stalks to 1-3 ft. in height. Purple-pink flowers occur in tight clusters.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Complexity: Simple
Size Class: 1-3 ft.
Bloom InformationBloom Color: Pink
Bloom Time: Jun , Jul , Aug , Sep
DistributionUSA: CA , ID , NV , OR , WA
Native Distribution: Mts. from Lake Co., CA to s. B.C., e. to w. ID & n.e. NV
Native Habitat: Swampy meadows at medium & high elevations
Growing ConditionsWater Use: High
Light Requirement: Sun
Soil Moisture: Moist
CaCO3 Tolerance: Medium
Soil Description: Moist soils.
Conditions Comments: Not Available
BenefitConspicuous Flowers: yes
PropagationDescription: Seed is easy to germinate using a gritty medium. Bulbs can be thinned in two or three years. Offsets may also be used to obtain new plants.
Seed Collection: Not Available
Seed Treatment: No treatment.
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Santa Barbara Botanic Garden - Santa Barbara, CA
Native Seed Network - Corvallis, OR
Additional resourcesUSDA: Find Allium validum in USDA Plants
FNA: Find Allium validum in the Flora of North America (if available)
Google: Search Google for Allium validum
MetadataRecord Modified: 2007-01-01
Research By: TWC Staff