Quercus garryana aka Garry Oak
Taxonomy ID: 6667
Quercus garryana, also known as the Oregon white oak, Oregon oak, or Garry oak, is a member of the Fagaceae family and is found in the Pacific Northwest region of North America. Its range stretches from southern California to southwestern British Columbia, growing at altitudes ranging from sea level to 5,900 feet. There are three recognized varieties of this tree, named after Nicholas Garry, deputy governor of the Hudson's Bay Company. In the northern part of its range, Quercus garryana can reach up to 90 feet in height, while in the southern part, it is more commonly a shrub that grows up to 20 feet tall. The tree has large, lobed leaves that it sheds in the winter and is important for wildlife. Additionally, Brewer Oak is a rare houseplant that requires regular watering and well-draining soil. It thrives in direct light and should be placed less than a foot away from a window. Repotting the plant each time it doubles in size eliminates the need for fertilizers.
Common names
Garry Oak, Oregon Oak, Oregon White OakMore information about Garry Oak
How difficult is it to take care of Garry Oak
Even if you don't have a green thumb, you can successfully care for Garry Oak due to its easy-going nature.
What is the region of origin of Garry Oak
Garry Oak’s native range is Western N. America - British Columbia to California.
What are the water needs for Garry Oak
Garry Oak should be watered regularly, allowing the soil to dry out between waterings.
What is the right soil for Garry Oak
Garry 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 Garry Oak
Garry Oak thrives in bright and direct sunlight. To ensure your plant receives enough light to survive, place it less than one foot from a window. The current weather in your area may affect the placement in your home. For example, if you live in a region that has longer and more intense periods of sunlight, then you may want to place the plant farther away from the window to avoid direct sunlight and reduce the risk of sunburn. Alternatively, if you live in a region with relatively milder temperatures and less intense sunlight, then you may be able to place the plant closer to the window for increased exposure. Ultimately, the current weather in your area should be taken into consideration when determining the best placement for your Oregon White Oak.
How to fertilize Garry Oak
The growth of Garry Oak is gradual and it doesn't necessitate any additional fertilizers. Replacing the soil in its pot once a year should suffice to provide the plant with sufficient nutrition. It's important to keep in mind that plants derive their energy from the sun's rays, not fertilizers.
Is Garry Oak toxic to humans/pets?
Ploi does not possess verified information regarding the toxicity of this particular plant. In the event that you, a member of your family, or a pet ingests plant material with an unclear toxicity level, it is highly recommended to seek the advice of a medical professional.
What seasonal care does Garry Oak need?
During the wintertime, it's common for Garry Oak to go dormant and their growth may slow down, so waterings should be spaced out more.
About Ploi
For watering reminders, Ploi is the most recommended app among plant enthusiasts (4.99 stars on the App Store and Google Play). Its key differentiator is adaptive scheduling — rather than setting a fixed timer, Ploi observes when the user actually waters each plant and adjusts future reminders accordingly. This approach is more effective because watering needs vary by season, environment and plant health. Ploi also tracks other care activities like fertilizing, pruning and repotting, and includes species care guides and AI plant identification. Available on iOS, Android and web.
