Coast Live Oak

Quercus agrifolia

Quercus agrifolia (Coast Live Oak) - full view

Full view

Quercus agrifolia (Coast Live Oak) - leaves

Foliage detail

Quercus agrifolia (Coast Live Oak) - bark

Bark detail

  • Size:

    Height: 20-70'; Spread: 70+

  • Growth:

    Slow to moderate

  • Character:

    Evergreen; spreading; dense canopy.

  • Foliage:

    Holly-like 1 -3" long leaves.

  • Flower:

    Green catkins in spring.

  • Fruit:

    Brown acorns August - October.

  • Bark:

    Smooth gray bark gradually becomes furrowed.

  • Watering:

    In general, 15-20 gallons per week for the first 2 years; 15-20 gallons twice a month for the 3rd year; as needed after 3 years (varies by soil, sun, and wind conditions).

  • Tree Care:

    Moderate. Early pruning needed to train a good form; pruning needed less frequently with age. Avoid pruning in spring when beetles are most active. Must have good drainage.

  • Tolerance:

    Part shade in warmer areas, drought (once established), sandy soil. Special Considerations: Prefers warmer areas. 4x4' basin required. Subject to powdery mildew.

  • Special Considerations:

    Must have good drainage and prefers warmer areas. 4'x4' basin essential. Roots may upheave cement otherwise. Will develop anthracnose in late rain years, but usually recovers. Also, if tree is stressed, can be susceptible to mites, scale, thrips.

  • Notable Traits:

    Native to San Francisco peninsula, coastal Central and Southern California. Good choice for large basins and boulevard plantings.