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Wasowski, Sally and Andy
Quercus dumosa Nutt.
Coastal sage scrub oak, Nuttall's scrub oak
USDA Symbol: QUDU
USDA Native Status: L48 (N)
An evergreen shrub, sometimes tree-like, to 15 ft. with an equal spread. Stiff twigs form a dense habit and bear wavy, leathery leaves. The prickly foliage is green on top and dull on the underside.
This common and variable shrubby oak hybridizes with tree species found nearby. Some plants classed as trees may be hybrids with size inherited from the larger parent. The scientific name means bushy or shrubby.
Bloom InformationBloom Color: Yellow
Bloom Time: Mar , Apr , May
DistributionUSA: CA Native Distribution:
Sierra Nevada & Coast Ranges in CA Native Habitat:
Dry slopes below 5000 ft.
Growing ConditionsWater Use: Low
Light Requirement: Sun , Part Shade
Soil Moisture: Dry
CaCO3 Tolerance: Medium
Soil Description: Dry sandy soils.
Conditions Comments: Easy to grow and drought tolerant. Grows 1-2 ft. per year.
Oaks are most often propagated from seed. No pretreatment is necessary. Plant immediately – outdoors or in deep containers to accomodate long initial taproot. Many oaks require cold temperatures to initiate shoot
development. Protect outdoor beds with Seed Collection:
Best quality acorns are picked or shaken from the tree. Collect when color has changed to brown. Best if sown immediately as acorns lose viability quickly in storage. Short-term storage in moist, shaded saw dust or sand. Acorns to be sown immediately can be soaked in hot water for 15 min. to prevent weevil infestation. Stored seed should be fumigated with methyl bromide. Commercially Avail:
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Santa Barbara Botanic Garden
- Santa Barbara, CANative Seed Network
- Corvallis, OR
Record Last Modified: 2009-02-20
Research By: TWC Staff