Description
Pseudotsuga – Douglas Fir –
There are 6-8 species of tall, evergreen, broad pyramidal shape, coniferous tree in this genus. They occur in forest in China, Taiwan, Japan, Western North America and Mexico. It produces linear leaves, with two bands of white on their undersides, arranged radially on the shoots, develop from pointed, many scaled buds that are unique to the genus. They can reach 300′ feet tall but it is rare in cultivation. The female brown cones have protruding, trident shaped bract scales, the male cones are cylindrical and hang downwards and take a year to mature. They are imposing specimen trees. They are major timber trees.
Grow in any well drained, deep soil, non alkaline soil, in full sun. They prefer cold climates
Prone to dieback, brown felt blight, canker, butt rot, lesion, nematode, needle cast, caterpillars, budworm, bark beetle, aphids, scale insects, and weevils.
P. menziesii var. glauca – P. douglasii var. glauca- P. taxifolia var. glauca- Blue Douglas Fir – Oregon Pine – this fast growing, conical conifer that produces smaller cones, 1 3/4-2 ½” long, with reflexed three pronged bracts, the leaves are blue-glaucous, and the gray or black bark is thinner and more scaly
Zones 5-7
