Douglas fir is a medium-sized evergreen tree with a short pyramidal symmetrical crown at the top of a clear straight trunk. The average size of this tree in Utah is 130 feet tall, and 36 inches in dia READ MORE http://extension.usu.edu/range/woody/dougfir.htm
The common name Douglas-fir honours David Douglas, the Scottish botanist who first introduced the tree into cultivation in 1826. Douglas is known for introducing many North American native conifers t READ MORE http://www.douglasfir.ca/