Koster Colorado Blue Spruce
Picea pungens 'Koster'
Height: 30'. Spread: 20'.
Light requirement: full sun.
Growth rate: moderate to fast. Habit: broadly pyramidal.
Foliage - spring/summer: silvery-blue.
Foliage - fall/winter: silvery-blue.
Fruit: 4" tan cones.
Attributes: habit to grow very irregularly making each
tree distinctive. Showy silvery-blue foliage.