|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. 'Aurea' has yellow new growth and is pyramidal in shape. The needles turn a grey color as they mature. It has flat, blunt needles and tiered, horizontal branches. This fast-growing plant enjoys plenty of sun, cooler climates and acidic soil.