Blue Oak (Quercus Douglasii) is a perennial tree in the Fagaceae family with moderate care difficulty. It requires drought-tolerant watering and full sun light in USDA hardiness zones 8-10. This plant is safe for cats and dogs.

Quercus douglasii, commonly known as blue oak, is a medium-sized deciduous oak tree endemic to California, recognized for its blue-green leaves and drought tolerance.

Blue Oak

Blue Oak

Quercus Douglasii

Quercus douglasii, commonly known as blue oak, is a medium-sized deciduous oak tree endemic to California, recognized for its blue-green leaves and drought tolerance.

Quick Facts

Type
tree
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
drought-tolerant
Light
Full Sun
Hardiness Zones
8-10

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:sandy, loamy, rocky
Indoor:No
Outdoor:Yes
Garden Use:specimen, shade tree, wildlife habitat

Care Calendar

Monthly care tasks for Blue Oak

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Blue Oak
Blue Oak detail

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Taxonomy

Family:Fagaceae
Genus:Quercus