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Blue oak

Quercus douglasii

Native deciduous oak is very drought and heat tolerant - needs little to no summer water. Leaves have attractive bluish tint. Very slow growing.

SMUD Availability:
Yes
Size:
Large
Height:
45-60 ft
Width:
40-60 ft
Water Needs:
Very Low
Evergreen or Deciduous:
Deciduous
Shape:
Round
Fall color:
None
Flowers:
No
Growth Rate:
Very Slow
Sunset Zones:
7, 8, 9, 14
Diseases and pests:
Wood and root rots occur, borers and chewing insects can also be a problem. Easily damaged by fire
Useful as a street tree? Minimum planting strip width?:
No

Minimum Planting Distances

  • from a building foundation: 15 feet
  • from walks and driveways: 8 feet
  • from a utility overhead (such as an overhead power line): 30 feet
  • between trees: 30 feet

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