California Native Plant Society
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Carnegiea gigantea
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Carnegiea gigantea

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About Saguaro (Carnegiea gigantea) The saguaro (Carnegiea gigantea), is a large, tree-sized cactus species in the monotypic genus Carnegiea. It is native to the Sonoran Desert in the U.S. state of Arizona, the Mexican state of Sonora, a small part of Baja California in the San Felipe Desert and an extremely small area of California, U.S. The saguaro blossom is the state flower of Arizona. The common name saguaro came into the English language through the Spanish language, originating in the language of the Tohono O'odham native American nation.
Plant Description
Plant Type
Shrub, Succulent

Max. Height
1.6 ft (0.49 m)

Flower Color
White, Cream

Flowering Season

Native Status
Natural Setting
Site Type
Rocky hills, plains


Elevation ?
343' - 1327'

Annual Precip. ?
3.6" - 8.2"

Summer Precip. ?
1.16" - 2.02"

Coldest Month ?
58.2° F - 62.3° F

Hottest Month ?
84.6° F - 88.3° F

Humidity ?
9.85 vpd - 40.64 vpd

Landscaping Information
Ease of Care
Moderately Easy

Water Requirement ?
Very Low
Extremely Low
Very Low
Moderate - High

Common uses
Hedges, Deer Resistant

Nursery Availability
Rarely Available

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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