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botanical name:
Pseudotsuga menziesii
Pseudotsuga menziesii © Deeproot Plant Base
common name:  Douglas Fir, Oregon Pine
synonyms:  Pseudotsuga douglasii, Pseudotsuga taxifolia, Psuedotsuga menziesii, Abies douglasii, Pinus taxifolia
family:  Pinaceae
characteristics: conifer, scented/aromatic
height: 50.00m
width: 10.00m
growth rate: fast
growth habit: conical
leaf colour: dark green
flower colour: light green
fruit colour: brown
stem/bark: brown
main season: All Year
aspect: full sun, part shade
conditions: moist soil
preferred soil pH: neutral-acid
minimum temp: -20°C
USDA zone: 6 to 8
description:
Tall, imposing conifer, broadly conical when young but becoming more columnar as it matures, with down-swept lower branches. Young trees have smooth grey bark, later becoming thick, deeply ridged and reddish-brown. Dark green linear leaves about 3cm. long and roughly arranged in two ranks along the shoots. They are fragrant when crushed.
Cones are up to 10cm long and have conspicuous long pointed bracts.

cultivation:
Most moist, well drained soils but not very chalky ones. May attain even greater height in ideal conditions. Young trees reach about 8 metres in 10 years.

propagation:
From seed.

usage:
Stately specimen tree for park and large spaces. Important for timber.

other notes:
Discovered by Archibald Menzies around 1792 and introduced to Europe by David Douglas in 1827.

Official state tree of Oregon, USA.

RHS AGM

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