Variations
Pseudotsuga menziesiivar. menziesii      Coastal Douglas Fir
This fast growing tree, up to 600mm (2ft) annually and can attain a height of 90m (300ft) with blue to grey green leaves. It produces cones that have straight appressed bracts.

Pseudotsuga menziesiivar. glauca      Rocky Mountain Douglas Fir
This slower growing tree attains a height of 40m (130ft) with a trunk up to 1m (3ft) and forms a narrow compact pyramidal crown. The smaller flat linear blue-green leaves are up to 30mm (1Ľin) long and are grooved above.

They are persistent on the tree for 5 to 8 years and the smaller cones are up to 75mm (3in) long. It grows to an altitude of 1,300m (4,000ft) in the northern regions and to 3,600m (11,000ft) in the south preferring a northerly exposure. This plant is commonly grown as an ornamental.

Cultivars
'Brevifolia'
This shrub grows to 2m (6ft) tall and appears as a miniature tree with the stems densely covered in narrow needles that are up to 15mm (? in) long. It dislikes lime based soils.

'Densa'
This slow growing dwarf shrub forms a dense habit with spreading branches and dark green needles up to 20mm (ľin) long.

'Fastigiata'
This tree has ascending branches that are crowded up the trunk forming a fastigiate habit. The needles are green to greyish and arranged densely on the erect branchlets.

'Fletcheri'
This slow growing dwarf shrub is 600mm (2ft) to 2m (6ft) tall, and up to 1m (3ft) wide with a spreading flat topped habit. It has blue-green needles and the plant is commonly cultivated.

'Fretsii'
This very slow growing shrub to 1.2m (5ft) in 30 years and has short broad needles up to 12mm (˝in) long. It tolerates limey soils and cold conditions.

'Nana'
This small compact shrub forms a conical habit with glaucous-green needles up to 25mm (1in) long.

'Pendula'
This tree has branches and branchlets that pendulous and forms a fastigiate habit.