|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. 'Igel' is a dwarf form. It has flat, blunt needles that are very short on tiered, horizontal branches. This slow growing plant enjoys plenty of sun, cooler climates and acidic soil.