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California Native Plant

Quercus douglasii

Blue Oak

Plant photo of: Quercus douglasii
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Information by: George Hull MSN        Photographer:

 

Description

Blue Oak is a deciduous tree that has a slow growth rate and reaches 50 ft. high. It develops 2" long, lobed blue-green leaves. Blue Oak is very drought tolerant, is native to California and attracts butterflies. Because of its slow growth, it can be used for bonsai. Flowers are insignificant. Acorns were used by California Natives for food.

 

Plant Type

Tree

Height Range

40-60'

Width Range

25-40'

Flower Color

Green, Yellow

Flower Season

Spring

Leaf Color

Blue Green

Bark Color

Grey

Fruit Color

n/a

Fruit Season

Intermittent

Sun

Full

Water

Very Low

Growth Rate

Slow

Soil Type

Clay, Rocky

Soil Condition

Average, Well-drained, Dry

Soil pH

Neutral

Adverse Factors

Messy

Design Styles

Mediterranean, Ranch, Woodland

Accenting Features

Specimen

Seasonal Interest

Winter, Spring, Summer, Fall

Location Uses

Background, Park

Special Uses

Shade Tree

Attracts Wildlife

Birds, Butterflies

Water Saving Tip:

Dig-up patches of weeds and undesirable grasses from turf areas.

Use water to grow the turf you want, not the weeds you don't want! Once you have eliminated what you don't want, add sod or over-seed to repair the bare areas.