|Abies concolor is a slow to medium growing fir with blue-green leaves pointing upward and forward along the shoot. The 3- to 5-inch cones are greenish-purple when young, turning brown. Reaches heights up to 130 feet. 'Sherwood Blue' is pyramidal in shape and has an open growth habit. It has short, flat, blunt needles that are bright blue, and tiered, horizontal branches. This plant enjoys plenty of sun, cooler climates and acidic soil.