Walter Siegmund (talk) · CC BY-SA 3.0
Douglas fir
Tree·Pseudotsuga menziesii
Full sun
Sun
Medium
Water
Well-drained soil
Drainage
Zones 4–9
Hardiness
Douglas fir (Pseudotsuga menziesii) is a tree. It grows best in full sun and has moderate water needs. It grows well with salal.
Through the year
GrowingFloweringFruiting
Works well with
from wiki dataWHAT IT NEEDS
Wants full sun
Needs moderate water
Needs well-drained soil
Prefers soil pH 4.5–6
Show moreShow less
Prefers loam, sandy loam soil
Struggles in compacted soil
Draws up calcium, magnesium from deep in the soil
Adds a lot of organic matter to the soil
Partners with mycorrhizal fungi to boost nutrient uptake
WHAT IT GIVES
Gives shade (dense)
Gives wind shelter (high)
Gives leaf litter (high, acidic needles)
Gives organic matter (high)
Gives habitat (wildlife habitat, nesting sites)
Gives timber (high quality)
Gives oxygen (high)
Provides calcium
Provides magnesium
Shelters birds
Shelters mammals
Shelters wildlife
HOW IT GROWS
SIZE & SPACING
Canopy tree
Height3000–10000 cm
Spacing1000 cm (min 600 cm)
Root depthDeep
Width600–1500 cm
Width figures are rough estimates, the most variable measurement in our data.
AI estimate · accuracy improves as growers contribute corrections.
HOW TO PROPAGATE
Propagate by seed
Difficulty
Establishes in about 5 yr
Self-seeds readily on its own
Where this comes from
Parsed4 Oct 2026
ConfidenceNot recorded
Photograph Walter Siegmund (talk) · CC BY-SA 3.0