of Los Angeles - Department of Public Works
Bureau of Street Services
Form - Evergreen. Moderate growth, compact to open, reaching 60' and a
spread of 40'. The irregular branches form a broad, slightly asymmetrical
Trunk - Whitish trunk and major limbs are covered with thick deeply fissured,
corky bark. This tree is the source of commercial cork.
Foliage - Leaves are lanceolate, 3" long, 3/4 - 1 1/4" wide, with toothed
margins, shiny dark green above, white or gray, downy on the underside.
- Flowers that appear in April or May are of separate sexes; males in
long pendulous catkins; females in erect spikes with 2 - 5 flowers. Fruit
is a typical acorn, with a cup of gray, fringed scales enclosing one third
to one half of the 1/2 - 1" long nut.
pest problems are California oak worm, oak anthracnose and Armillaria
Sunset zones - 5 - 7 (with possible winter damage), 8 - 16, and 18 - 23.
- Suitable for 7' minimum parkways, medians or cutouts.
Good for street sides, medians, parks and lawns.
Will tolerate most soil types and acid conditions. Will tend
to yellow in alkaline soils. Very tolerant of drought conditions and heat,
once established. Prefers well drained soil.
One of the best oaks for desert use.