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Jepson's onion

Allium jepsonii

Jepson's onion
Photo: U.S. BLM, Public domain

Jepson's onion is a small wild onion native to the Sierra Nevada foothills of California, grown mainly by enthusiasts of native bulbs. It needs a dry summer rest and well-drained clay-based soil to thrive.

Family
Amaryllidaceae (Daffodil & onion family)
Grows as
Bulb
Light
Full sun
Water
Water moderately in the wet season and keep the bulb dry while it is dormant in summer.
Soil
Well-drained clay or heavy loam, with grit added for drainage.
Temperature
Tolerates cold winters and hot dry summers typical of its foothill habitat; frost-hardy.
How easy
Moderate
Edible
Yes, some parts
Native range
NC. California
Climate
temperate

About

Allium jepsonii is a species of wild onion known by the common name Jepson's onion, honoring renowned California botanist Willis Linn Jepson.

Where it grows

Allium jepsonii is endemic to the foothills of the Sierra Nevada foothills of California, in Tuolumne, Placer, El Dorado, and Butte Counties. It is found at elevations of 300–600 metres (980–1,970 ft) and grows on clay soils.

Other Allium plants

South Idaho onion · Abrams' allium · Allium aciphyllum · Tapertip onion · Allium aeginiense · Allium aflatunense · Allium agrigentinum · Allium alabasicum · Allium albotunicatum · Allium alibile · Altai Onion · Allium altissimum

Text excerpted from the Wikipedia article Allium jepsonii 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.

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