Mahonia fremontii (Torr.) Fedde
Desert Oregon-grape, Fremont barberry, Fremont's mahonia, Holly grape
Berberidaceae (Barberry Family)
Synonym(s): Berberis fremontii, Berberis higginsiae, Mahonia higginsiae, Odostemon fremontii
USDA Symbol: mafr3
A roundish shrub, 3-8 ft. with stiff, erect branches; showy yellow flowers; blue-green, prickly foliage and yellow to red berries.
This plant is susceptible to diseases and so is considered undesirable in agricultural areas, where it can spread disease to crop plants.
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Plant CharacteristicsDuration: Perennial
Fruit: Yellow or red to brown 12-18 mm
Size Class: 6-12 ft.
Bloom InformationBloom Color: Yellow
Bloom Time: Apr , May , Jun
DistributionUSA: AZ , CA , CO , NM , NV , UT
Native Distribution: W. CO, UT, NM, n. AZ & rare in Mohave Desert
Native Habitat: Dry, rocky, pinyon/juniper areas 3000-5000 ft.
Growing ConditionsLight Requirement: Part Shade
Soil Moisture: Dry
Soil Description: Dry, rocky soils.
Conditions Comments: Occasionally reaches tree size. Drought-resistant. Considered a menace in cereal-raising areas as it is a host for wheat rust.
PropagationDescription: Increase is possible with seed, layers or cuttings.
Seed Collection: Ripe fruits may be pick by hand, using heavy gloves, or flailed onto cloth beneath the bushes. Seeds can be removed through maceration and flotation.
Commercially Avail: yes
Find Seed or Plants
View propagation protocol from Native Plants Network.
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Santa Barbara Botanic Garden - Santa Barbara, CA
Additional resourcesUSDA: Find Mahonia fremontii in USDA Plants
FNA: Find Mahonia fremontii in the Flora of North America (if available)
Google: Search Google for Mahonia fremontii
MetadataRecord Modified: 2007-01-01
Research By: TWC Staff