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California Live-oak

Quercus chrysolepis

Care

Sun

full sun, part shade

Water

very low

Soil

Medium; Found in a wide variety of soils in various parts of the state.

Size

30–90ft tall , 30–60ft wide

Bloom

Jan-Dec

Foliage

Evergreen

Deer

Resistant

Edible

Acorns leached and ground into flour for traditional food

Keystone Plant

Supports up to 275 butterfly and moth species in Mediterranean California

Native Range

Chaparral, oak woodlands, and mixed conifer forests throughout California mountains and foothills from 1000-7000 ft elevation, from Oregon to Baja California.

Care Guide

Planting

Plant your canyon live oak in full sun in a location with medium drainage - this tree adapts to a wide variety of soils, so don't overthink the soil type. Fall through early spring is the best planting window in the Bay Area. Space it with mature size in mind (30–90 feet depending on your microclimate), and avoid planting in areas prone to standing water, as this oak thrives in well-draining conditions despite its affinity for creek-side habitats.

After Planting

Water weekly for the first summer to establish roots, then dramatically reduce frequency - by year two, limit irrigation to a maximum of twice per month once established, since this is a very low-water tree. Your biggest mistake will be overwatering; canyon live oak is drought-tolerant and resents wet feet. Minimal pruning is needed - this tree regenerates vigorously on its own, and you can remove damaged branches in late winter if necessary.

Visit Calscape for more information about California Live-oak

Endangered & Threatened Species Supported

California oak moth Phryganidia californica
CA Special Concern

California Species of Special Concern

Wildlife Supported

Birds

Seeds · Year-Round

Primary acorn dispersal agent; caches acorns Sep-Feb for overwintering food

Mammals

Seeds · Year-Round

Harvests and caches acorns; important seed dispersal and predation Sep-Feb

Insects

Foliage · Year-Round

Major larval host; caterpillar defoliation Apr-Jun; can reach outbreak densities

Foliage · Year-Round

Larval host plant; caterpillars feed on new foliage Mar-Jun

Foliage · Year-Round

Larval host plant; caterpillars feed on new oak leaves Apr-Jul

Larval Host · Year-Round

Fungal pathogen affecting oak health; spreads via spores in wet conditions

Shelter · Year-Round

Uses oak canopy and branches for hunting and shelter; egg cases laid on bark

Foliage · Year-Round

Larval host plant; caterpillars feed on oak foliage May-Aug

mod Maia moth
Foliage · Year-Round

Larval host plant; caterpillars feed on oak foliage

Foliage · Year-Round

Larval host plant; wood-boring beetle larvae develop in wood and bark

+2 more species

Where to Buy

Native Here Nursery

101 Golf Course Dr, Tilden Regional Park, Berkeley

Sat 10am-2pm

3.0 mi (510) 549-0211 Website
Yerba Buena Nursery

12511 San Mateo Rd, Half Moon Bay

Tue-Sat 9am-4pm

12.0 mi (650) 851-1668 Website