Swamp Onion

Allium validum

Swamp onion is a tall western onion of wet mountain meadows, with dense rose-purple flower heads beloved by bees, and edible throughout.

Family: Amaryllidaceae
Type: wildflower
Lifespan: perennial
Height: 2–3 ft
Spacing: 0.5–1 ft apart
Light: sun
Soil moisture: wet, moist
Soil pH: neutral, acidic
Bloom: July, August
Bloom colors: pink, purple
Wildlife value: pollinators, butterflies
Landscape uses: border, rain garden, erosion control, naturalizing
Native states: CA, NV, OR