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Zones 3-11, 14-24
Full Sun
Full
Minimal Water
Minimal

Quercus douglasii

BLUE OAK
Fagaceae
Deciduous, Trees, Flowers

QUERCUS

Appearance and hardiness of Oaks vary widely, but all produce acorns preceded by inconspicuous flowers. Single nuts are more or less enclosed in a cuplike cap covered with many closely set scales. In some species, the acorns are edible,with a sweet flavor. Some oaks are widely planted over large areas, while others have a limited range

Quercus douglasii

Native to dry foothillsaround California’s Central Valley and interior valleys of Southern California. Low branching, wide spreading; to 30–50 ft. tall, 40–70 ft. wide. Light gray bark is shallowly checked in small squares. Shallowly lobed, oval, bluish green leaves are 1 1/2–4 in. long, 3/4–2 in. wide. Attractive fall colors: pastel pink, orange, yellow. Egg-shaped, 3/4–1 1/4-in. acorns with sharply pointed tip and thin, flat cap. Good in dry, hot situations. Immune to sudden oak death.

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