SelecTree: Tree Detail
Photo Locations: Desert Botanical Garden - Phoenix, AZ, Tucson, AZ and The Living Desert - Palm Desert, CA
A classic cactus for any desert garden. Has a ribbed trunk that shrinks or swells with changes in moisture. As a slow grower is a good option for a container or garden for many years. Blooms at night. Crested Saguaros are a rare mutation that is little understood.
Has fragrant Flower.
Native to Mexico, Arizona and California.
A Carnegiea gigantea in Ducor is registered as a California Big Tree. It measures 22 feet high, with a trunk circumference of 47 inches and a crown spread of 7 feet.
Additional Common Names
SAGUARO CACTUS, GIANT CACTUS
Has Evergreen foliage.
Height: 25 - 50 feet.
Width: 3 - 10 feet.
Growth Rate: 12 Inches per Year.
Longevity Greater than 150 years.
Leaves Spines, No Change, Evergreen.
Flowers Showy. Fragrant White. Flowers in Spring. Has perfect flowers (male and female parts in each flower).
Few, Red Berry, Small (0.25 - 0.50 inches), fruiting in Winter Edible.
Bark Green, Ridged.
Shading Capacity Rated as Low in Leaf.
Tree Site Conditions & Constraints
Sunset Zones 12, 13 and 18 - 21.
USDA Hardiness Zones 9 - 11.
Exposure Full Sun.
Well Drained Soil.
Loam or Sand Texture.
Neutral to Highly Alkaline Soil pH.
Salinity Tolerance is Moderate Inland.
Seaside Tolerance is Good in South Coast.
Pests & Disease Information
Susceptible to Saguaro Virus, Fungi and Bacterial Rot.
Health, Safety & Environmental Concerns
Branch Strength Rated as Strong.
Root Damage Potential Rated as Low.
Fire Resistance is Favorable.
Desirable Wildlife Plant.
Not Deer Palatable.
Special Uses & Values
Cite this tree:
SelecTree. "Carnegiea gigantea Tree Record." 1995-2021. May 13, 2021.
< https://selectree.calpoly.edu/tree-detail/carnegiea-gigantea >