Coast Live Oak (Quercus agrifolia)–Trees of Sonoma County, CA

Coast Live Oak is a magnificent evergreen tree with a broad, spreading crown and an impressive lifespan that can exceed 250 years. It is native to California and can be found throughout Sonoma County. These trees provide habitat and food for numerous birds and animals and have an important role in California’s ecosystems.

General Information

Scientific Name: Quercus agrifolia

Native to: California, including Sonoma County

Mature Size: 25-82 ft tall and wide

Growth Rate: Slow to moderate

Ideal Planting Location: Full sun to partial shade, well-draining soil

Water Requirements: Coast Live Oak requires deep and infrequent watering during the dry season, as it is adapted to drought-like conditions. 

Common Pests and Diseases

Coast Live Oak is susceptible to a variety of pests and diseases, including oak root fungus, Phytophthora ramorum (the cause of sudden oak death), and oak moth. To prevent these problems, avoid disturbing the soil around the roots, keep the tree healthy and vigorous, and promptly treat any signs of pest or disease infestations.

Additional Care Tips

Mulch around the base of the tree to conserve moisture and suppress weeds.

 

I hope you learned something about the trees we live amongst in Sonoma County! At LongView Tree Care, we are passionate about providing high-quality tree care services to our clients. If you’re in need of tree pruning, tree health care services, or hazard tree removal, we’re here to help. Contact us today to learn more about how we can help you maintain the health and beauty of your trees.