Quercus tomentella

Island Oak

Plant Type: Tree
Sun: Partial Shade, Sun
Drainage: Medium
Water: Occasional, Regular
Height X Width: 40' X 30'
Santa Clara County Local: No
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Island oak is found on several of California’s Channel Islands and Guadalupe Island off of Baja, Mexico. It once was widespread on the mainland according to the fossil record. It is thought to have disappeared as California became warmer and drier. This oak grows in an upright vase shape, with gray bark and evergreen dark green leaves with s spiny margins. This attractive oak will thrive in sun or partial shade and soil of at least medium drainage. Occasional deep watering is sometimes recommended, although the Channel Islands receive little or no rainfall in the summer. Island oak is tolerant of temperatures down to 10F.


Deer Resistant: Yes
Attractive to Bees: Yes
Attractive to Butterflies: Yes
Good Under Oaks: No
Evergreen or Deciduous: Evergreen