California Black Oak (Quercus Kelloggii) is a perennial tree in the Fagaceae family with moderate care difficulty. It requires moderate watering and full sun or partial shade light in USDA hardiness zones 6-9. This plant is toxic to cats and dogs — keep it out of reach of pets.

A large deciduous tree native to western North America, known for its deeply lobed leaves and dark bark.

California Black Oak

California Black Oak

Quercus Kelloggii

A large deciduous tree native to western North America, known for its deeply lobed leaves and dark bark.

Quick Facts

Type
tree
Lifecycle
perennial
Care Difficulty
Moderate
Water Needs
Moderate
Light
Full Sun, Partial Shade
Hardiness Zones
6-9

Safety

⚠️
Not Pet Safe
👶
Child Safe
☠️
Toxic

Growing Conditions

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

Care Calendar

Monthly care tasks for California Black 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

California Black Oak
California Black Oak detail

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Taxonomy

Family:Fagaceae
Genus:Quercus