How to Grow and Care for Douglas Fir (Complete Guide)

Named after Scottish botanist David Douglas and in honor of Archibald Menzies, another fellow botanist, it is even classified as the state tree of Oregon.

Douglas Fir Care

Despite its common name, the Douglas Fir is not a true fir, nor is it a pine or hemlock. It belongs to its own unique genus – Pseudotsuga.


As a master gardener I’ve noticed that this tree thrives best in full sun. Its fondness for light is similar to other evergreen trees, including pines and hemlocks.


The Douglas Fir, known scientifically as Pseudotsuga menziesii, is a versatile and hearty evergreen tree that has the capacity to grow in a wide range of soil types.


Douglas fir is a large tree that thrives in moist soil conditions. Due to its natural habitat, this species is adapted to regions with a mix of both heavy rainfall and periods of drought.

Temperature and Humidity

The Douglas fir prefers cooler climates and can withstand temperatures well below freezing. Regardless of temperature, maintaining adequate humidity is crucial.


While fertilizing, special care should be taken to maintain the pH levels so as to prevent needle yellowing.


Usually, pruning should be carried out when the tree is dormant, removing only dead, diseased, or broken limbs. Care should be taken not to damage the main trunk.

Types of Douglas Fir

Pseudotsuga menziesii var. menziesii: The Pseudotsuga menziesii var. menziesii, often referred to as the Coast Douglas Fir, is commonly found in the Pacific Coast of the United States and Vancouver Island in Canada.

Pseudotsuga menziesii var. glauca

The Pseudotsuga menziesii var. glauca, also known as the Rocky Mountain Douglas Fir, is native to western North America, particularly within the Rocky Mountains, extending from central British.

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