Douglasfir
 

Mature Size, Growth, Longevity

Average mature size of 40-80' tall and 12-20' wide in the landscape, species can reach over 200' tall in native habitat. Medium growth rate, 1-2' per year. Long lived, 200 years or more.

Native Range

Rocky Mountains & Pacific coast.

Flower and Fruit Details

Flowers are monoecious, male axillary and pendulous, female terminal, exerted 3-point bracts, developing on second-year wood. Fruits in oval-ovoid cones, pendulous, brown, 3-4" long, 3-prong bracts.

Leaf and Bark Features

Evergreen: Bark is smooth young, older trunks develop thick reddish-brown ridges.

Culture and Care

Transplants well into neutral to slightly acid, well-drained, moist soil. Susceptible to cankers, leaf casts, leaf and twig blight, witches' brooms, aphids, Douglasfir bark beetle, spruce budworm, moths.

Strengths, Weaknesses, Other Facts

Makes a nice short-needle Christmas tree. National champion is 329' x 60' in Oregon.

Taxa and Plants of this Species at BCA