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Plant type

Tree, Shrub


15 - 50 ft Tall
10 - 50 ft Wide

Growth rate





Cream, Green

Flowering season

Winter, Spring

Common uses

Bank stabilization, Deer resistant

Interior Live Oak (Quercus wislizeni) is a slow-growing, evergreen tree with a distinctive broad crown. The glossy dark green leaves and reddish-brown bark give it a formal look.

In winter and spring, the oak blooms with green and white flowers. The tree's long, narrow acorns serve as a food source for deer.

Interior Live Oak is a resilient and adaptable species. It thrives at elevations ranging from sea level to 5,000 feet, making it an essential part of diverse ecosystems throughout California. Interior Live Oak grows in part to full shade and prefers dry, loamy soil.


Full Sun, Partial Shade


Moderate, Very Low

Summer irrigation

Max 1x / month once established

Ease of care


Cold tolerance

Tolerates cold to 10° F

Soil drainage


Soil description

Tolerant of a variety of soils.
Soil PH: 5.0 - 7.0


For propagating by seed: Sow fresh acorns in fall outdoors or stratify to hold for spring sowing (USDA Forest Service 1974).

This oak is compatible with a very wide ranges of native trees, shrubs, vines, perennial herbs and annual wildflowers.


Butterflies and moths supported

14 confirmed and 158 likely

Confirmed Likely

Abagrotis baueri

Sallow Button

Acleris hastiana

Acrobasis caliginella

Acrobasis comptella

Site type

Hillsides, canyons and floodplains across most of California in locations where winters are wet but not freezing and summers are hot and dry.

Plant communities

Chaparral, Foothill Woodland,