About
Allium columbianum is a wild onion of the inland Pacific Northwest that grows on shallow, wet soils.
Care at a glance
- Pet safety
- Allium species are toxic to cats and dogs; eating large amounts can cause hemolytic anemia, and cats are most sensitive. General guidance for the genus
- People
- Low toxicity; eating large quantities may cause nausea, vomiting and diarrhoea. General guidance for the genus
- Light
- Full sun to light shade. General guidance for the genus
- Propagation
- Divide bulb offsets in spring; seed is slower and may take years to germinate. General guidance for the genus
“General guidance for the genus” marks advice sourced for the genus as a whole rather than this species.
Field notes
Morphology
Produces egg-shaped bulbs up to 15 mm long and flowers up to 10 mm across, pink to light purple with a green midrib and blue to grey anthers and pollen.
Distribution & habitat
Eastern Washington, northern Idaho and the Bitterroot Mountains of western Montana, on shallow wet soils at 300–1100 m.
Ecology
Flowers from May to July.
Habitat
- Altitude
- Not recorded
- Altitude class
- —
- Native to
- United States
Cultivation
- Difficulty
- Not recorded
Text adapted from Wikipedia, CC BY-SA 4.0.
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