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Jepson's Onion
Allium jepsonii
About Jepson's Onion (Allium jepsonii) 0 Nurseries Carry This Plant Allium jepsonii is a species of wild onion known by the common name Jepson's onion. It is endemic to the Sierra Nevada foothills of central California. This onion grows to a height between about 20 and 40 centimeters from one or two oval-shaped bulbs. There is a single cylindrical leaf which is about the same length as the stem. The flower cluster holds 20 to 60 small flowers, each under a centimeter long with pink-veined white petals with curling tips.
Plant Description
Plant Type
Plant Type
Perennial herb

0.7 - 1.3 ft tall

Flower Color
Flower Color
White, Pink

Wildlife Supported

Landscaping Information
Full Sun

Natural Setting
Site Type
Site Type
Open, or volcanic slopes, flats

Annual Precipitation: 29.1" - 78.0", Summer Precipitation: 0.54" - 1.70", Coldest Month: 42.6" - 48.9", Hottest Month: 64.3" - 74.0", Humidity: 2.07" - 22.51", Elevation: 972" - 3817"

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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