Abies concolor 'Birthday Broom' is a cute, diminutive selection of white fir with short, 0.5 inch (1.2 cm) long, light-blue needles and a uniform, cushion-shaped growth habit. After 10 years, a mature specimen of this plant will only measure 14 inches (25 cm) tall and 20 inches (50 cm) wide, a growth rate of only 1 inch (2.5 cm) per year.
This cultivar originated as a massive. 3 foot (1 m) wide witch's broom found in the late 1990s by Rich Eyre of Rich's Foxwillow Pines, Woodstock, Illinois. He found the original broom in Milwaukee, Wisconsin on his birthday, hence the name. On occasion, this plant is seen listed under the cultivar name, 'Rich's Birthday Broom.'