A large pyramidal tree with a rather formal appearance in the landscape somewhat akin to Colorado Blue Spruce. In the average home landscape, the tree will reach 30-50 feet tall and 15-25 feet wide when mature. Concolor fir is tolerant of some shade, although it prefers full sun, and is hardy in zones 3-7.
The Douglas Fir has a large pyramidal shape and a straight trunk and can grow to a height of 80+ ft in the right growing conditions. They are a popular choice for Christmas trees. Douglas Fir features soft gray-green to blue-green needles, which carry a pleasant aroma when cut or crushed. They prefer rich, moist, well-drained soils. Once established, they love the full sun and will become dominant in the ecosystem.
If you like the appearance of Fir trees but do not have much room in your yard, choose the Korean fir. An attractive feature is the display of purple cones that appear as the tree begins fruiting. As the season progresses they become tan in color.This species is shorter than other fir trees and will reach a mature height of 15 to 30 feet tall with a spread six to 15 feet wide. It grows in a pyramidal shape.