Iconic natural pyramidal shape with beautiful short green needles and 4-6” pine cones. This is the typical Christmas tree. Dougless Fir belongs to a genus of about six species of evergreen trees of the conifer family Pinaceae, native to western North America and eastern Asia. Adds gorgeous fall and winter interest to any landscape. When mature, the Rocky Mountain Douglass Fir is a very large tree, typically reaching 115-158 feet in height.