Seedlings are 3-4 years old, 12-16 inches tall.
The Douglasfir grows to a height of 40–70' and a spread of 12–20' at maturity.
Full sun and partial shade are best for this tree, meaning it prefers a minimum of four hours of direct, unfiltered sunlight each day.
The Douglasfir prefers acidic or neutral soil that is well-drained. Though it can be found in its native habitat of rocky mountain slopes, it is sensitive to drought.