Coast Live Oak Plant Care
Quercus agrifolia Née
Quercus agrifolia, the California live oak, or coast live oak, is an evergreen live oak native to the California Floristic Province. Live oaks are so-called because they keep living leaves on the tree all year, adding young leaves and shedding dead leaves simultaneously rather than dropping dead leaves en masse in the autumn like a true deciduous tree.
Every 7–14 days
Full sun
0–100°F
30–70%
What Is the Coast Live Oak?
Coast Live Oak (Quercus agrifolia) belongs to the Fagaceae family within the Quercus genus. Coast Live Oak is native to the California Floristic Province. Coast Live Oak is also known as California Live Oak.
Coast Live Oak displays a large deciduous tree growth habit, reaching up to 80 inches tall with a spread of approximately 60 inches. Coast Live Oak produces inconspicuous catkins.
Leaf size: approximately 6 inches.
How Often Should You Water a Coast Live Oak?
Quercus agrifolia requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Coast Live Oak Need?
Coast Live Oak thrives in full sun light conditions. The optimal light range is 2000–10000 lux. Avoid placing Coast Live Oak in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Full sun
2000–10000 lux
What Temperature and Humidity Does the Coast Live Oak Prefer?
Quercus agrifolia grows best at temperatures between 0°F and 100°F. Coast Live Oak prefers humidity levels of 30–70%.
Temperature
0–100°F
Humidity
30–70%
What Soil Mix Works Best for a Coast Live Oak?
Well-draining loamy soil with good organic content. Good drainage is essential for Coast Live Oak to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Coast Live Oak?
Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Coast Live Oak?
Coast Live Oak can be propagated through acorns, grafting. Similar propagation techniques also apply to white oak plant care, which shares the same genus.
Fertilizing
Every 26 months
During the growing season
Is the Coast Live Oak Toxic to Pets and Children?
Non-Toxic
Non-toxic to humans and pets
What Pests and Diseases Affect the Coast Live Oak?
Coast Live Oak is susceptible to oak leaf blister, oak wilt, gypsy moth. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
What USDA Hardiness Zone Does the Coast Live Oak Need?
Coast Live Oak grows outdoors in USDA Zone 7a – 10b. Native to the California Floristic Province, Coast Live Oak is adapted to warm climates. In cooler regions, grow Coast Live Oak as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 7a – 10b
Keep exploring plants
Coast Live Oak is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Quercus genus — compare its care with other Quercus species on PlantoScan.
Coast Live Oak thrives in bright light and direct sun — see other bright-light plants.
More Quercus Species
Other Quercus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
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