Abies concolor, known as the White Fir or Colorado White Fir, is the most commonly grown landscape fir in the United States because it has good heat tolerance and is a better choice for areas with hot summers than other species. The color is a pleasant light blue or silver and is similar to Colorado Blue Spruce but without the super sharp needles that make Spruce painful to handle or brush against. White Firs are easy to grow and cultivate