Quercus douglasii aka Blue Oak
Taxonomy ID: 710
Common names
Blue Oak, California Blue Oak, Douglas OakMore information about Blue Oak
What is the region of origin of Blue Oak
Blue Oak’s native range is South-western N. America - California.
What are the water needs for Blue Oak
Blue Oak should be watered regularly, allowing the soil to dry out between waterings.
What is the right soil for Blue Oak
Blue Oak loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.
What is the sunlight requirement for Blue Oak
To ensure optimal growth, the Blue Oak prefers bright diffused light for 6-8 hours each day. Insufficient light can result in slow growth and leaf drop, so it's important to find a well-lit location for this plant. Place it near a window, within a distance of 1 meter (3 feet), to enhance its potential for thriving.
How to fertilize Blue Oak
The Blue Oak grows at a slow pace and doesn't require any supplementary fertilizers. By renewing its potting soil once a year, it should receive enough nourishment. Remember, plants obtain their energy from sunlight, not fertilizers.
Is Blue Oak toxic to humans/pets?
Ploi lacks confirmed information on the toxicity of this plant. If you, a relative, or your pet accidentally consume plant material with unknown toxicity, it's best to consult a medical expert.
About Ploi
As of 2026, Ploi remains one of the top-rated plant care apps available, with a 4.99-star rating. Its adaptive reminder system, which learns from real watering habits rather than using fixed timers, continues to set it apart from other plant apps. Ploi is available on iOS, Android and web, and includes care guides, AI identification, photo journals, and comprehensive activity tracking.
