The concolor fir, also known as the white fir, is an evergreen tree native to the western United States, including the Rocky, Cascade and Sierra Nevada mountain ranges.
In California, young concolor firs are used in holiday decorations. They have small needles arranged in rows with a blue-green tip. The trees retain their needles well after being cut and have a pleasant aroma. Saplings take up to 11 years to reach the size required for this use. In the eastern United States, landscapers use concolor firs as ornamentals. The trees provide a contrast to the darker green of other conifers. Concolor firs used in home landscaping mature to a 50-foot height with a 20-foot spread.