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California Mountain Ash
Sorbus californica
About California Mountain Ash (Sorbus californica) 0 Nurseries Carry This Plant Sorbus californica, the California mountain ash, is an aggregate species of Rowans native to western North America and sometimes cultivated. It has orange-red fruit and leaflets that are toothed almost from base to apex, but is said to be most often confounded with the western North American species S. occidentalis which has pinkish fruit and leaflets with few teeth.
Plant Description
Plant Type
Plant Type

3.3 - 7 ft tall

Wildlife Supported

Landscaping Information
Shade, Part Shade

Sunset Zones
Sunset Zones?
1, 2, 4, 5, 6*, 7, 15, 16

Natural Setting
Site Type
Site Type
Moist places

Annual Precipitation: 22.4" - 152.8", Summer Precipitation: 0.51" - 5.61", Coldest Month: 21.2" - 49.7", Hottest Month: 41.1" - 72.4", Humidity: 0.80" - 21.12", Elevation: 1058" - 12913"

Alternative Names
Common Names: Cascade Mountainash, Mountain-ash

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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