Concolor Fir

Concolor fir is a fairly slow-growing, drought-resistant tree. Not only is it beautiful but it is one of the most adaptable firs. Concolor fir is native to the western United States and there can reach heights of 130-150 ft. and may occasionally reach 350 years of age. It does best in deep, rich and well-drained soils. Avoid heavy clay and wet spots, such as near over-irrigated lawns. Concolor fir is tolerant of some shade, although it prefers full sun, and is hardy in zones 3-7.
This is a very desirable tree in the landscape, but may need some protection on very windy, exposed sites. Because of its dense growth it does not need any pruning to keep its shape. With its conical form, blue-green foliage and lack of insect or disease problems, it could be used as a substitute for blue spruce.