California Live Oak
Quercus agrifolia
Last reviewed: July 2026
Quercus agrifolia is an evergreen oak tree native to California that blooms from March to May. This drought-tolerant species thrives in full sun and supports native pollinators including bees and beetles.
California Live Oak (Quercus agrifolia) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
The USDA PLANTS Database (opens in new tab) does not flag California Live Oak as toxic to livestock.
Light
full sun
Water
low
Size
240"–720" H × 240"–720" W
Bloom
Mar, Apr, May
Native to
CA
Pollinators
bees, beetles
Browse plants for this ecoregion
This live oak is a magnificent evergreen tree native to coastal regions. It features dark green, spiny leaves and develops a broad, rounded crown with age. This drought-tolerant oak can live for centuries and serves as a cornerstone species in its native ecosystems.
Growing California Live Oak
Grow California Live Oak in full sun and low water. Mature plants reach 240 to 720 inches tall and spread 240 to 720 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
California Live Oak is an HOA-friendly choice in the right placement. Maintenance level: moderate. Tidiness: 3 out of 5.
Works well in: street edge, mid zone.
- Mature size (20-60 ft) may be too large for smaller properties
- Leaf and acorn drop requires seasonal cleanup
- Root systems may interfere with hardscaping over time
Wildlife value
Host plant for myrtle blue butterfly, California sister butterfly.
This oak provides exceptional wildlife value, supporting numerous native insects, birds, and mammals. Its acorns are a crucial food source for many species, while its structure offers nesting habitat for birds.
Common questions
- When does Quercus agrifolia bloom?
- California Live Oak blooms from March through May, producing small catkins that attract native pollinators.
- What pollinators does Quercus agrifolia support?
- California Live Oak is visited by various native bees and beetles during its spring blooming period.
- Where is Quercus agrifolia naturally found?
- This oak species is native to California, where it grows in coastal and inland areas throughout much of the state.
- How much water does California Live Oak need?
- Quercus agrifolia is drought-tolerant once established, requiring low to moderate water and adapted to California's Mediterranean climate.
- Is California Live Oak toxic to dogs?
- California Live Oak is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
- Is California Live Oak toxic to cats?
- California Live Oak is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
- Is California Live Oak toxic to livestock?
- The USDA PLANTS Database does not flag California Live Oak as toxic to livestock.
- Is California Live Oak HOA-friendly?
- California Live Oak is generally an HOA-friendly choice in the right placement, with moderate maintenance.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow California Live Oak? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz