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Lyall's mariposa lily

Calochortus lyallii

Lyall's mariposa lily
Photo: Thayne Tuason, CC BY-SA 4.0

Lyall's mariposa lily is a small native bulb-forming perennial of dry to moist open forests east of the Cascades in British Columbia and Washington, grown for its white to pale violet bell-shaped flowers. It needs good drainage and a cool, dry summer rest to thrive.

Family
Liliaceae (Lily family)
Grows as
Grass
Light
Full sun, Part shade
Water
Water moderately during spring growth and keep nearly dry once the foliage dies back in summer.
Soil
Sharply drained, gritty or sandy loam.
Temperature
Cold hardy in cool temperate climates; tolerates winter frost well, but needs hot dry summers.
How easy
Moderate
Safety
Not toxic to cats or dogs (ASPCA).
Native range
S. British Columbia to Washington
Climate
temperate

About

Calochortus lyallii, or Lyall's mariposa lily, is a North American species of flowering plant in the lily family. It is native and endemic to Province of British Columbia in western Canada, as well as the State of Washington in the northwestern United States. It only grows east of the Cascade crest in the mountains and foothills, and though its numbers are apparently secure in Washington, it is considered to be a blue-listed species in Canada- blue-listed taxa are at risk, but are not extirpated, endangered or threatened. It is found in dry to mesic open forest at lower to middle elevations in the mountains, commonly found with Pinus ponderosa (Ponderosa pine), Pseudotsuga menziesii (Douglas fir), Calamagrostis rubescens (pinegrass) and Carex geyeri (elk sedge).

Other Calochortus plants

White fairy-lantern · Diogenes' lantern · Doubting mariposa lily · Purple fairy-lantern · Pointedtip mariposa lily · Clay mariposa lily · Golden mariposa lily · Calochortus balsensis · Calochortus barbatus · Bruneau mariposa lily · Santa Catalina mariposa lily · Calochortus cernuus

Text excerpted from the Wikipedia article Calochortus lyallii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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