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Cascade Onion
Allium cratericola
  
About Cascade Onion (Allium cratericola) 2 Nurseries Carry This Plant Allium cratericola is a species of wild onion known by the common name Cascade onion. It is endemic to California, where is an uncommon member of the flora in several of the state's mountain ranges. This onion grows a short stem up to 10 centimeters tall from a brown-coated oval-shaped bulb. There are one or two long, pointed leaves up to four times the length of the stem. The flower cluster contains up to 20 rosy pink flowers clustered densely together.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
4 in tall

Flower Color
Flower Color
White, Pink

Flowering Season
Flowering Season
Spring

Wildlife Supported
 


Landscaping Information
Sun
Sun
Full Sun

Moisture
Moisture
Low

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Soil Drainage
Soil Drainage
Fast

Common uses
Common uses
Bee Gardens

Sunset Zones
Sunset Zones?
7*, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21

Natural Setting
Site Type
Site Type
Open, volcanic, or granitic places

Climate
Climate
Annual Precipitation: 11.2" - 108.6", Summer Precipitation: 0.25" - 3.76", Coldest Month: 33.6" - 51.3", Hottest Month: 56.9" - 74.5", Humidity: 0.31" - 22.81", Elevation: 254" - 7541"


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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