This package contains 2 blue spruce (Picea pungens glauca) trees. The Colorado blue spruce is one of the most popular ornamental conifers. It has many attributes that make it suitable for yards: magnificent color, conical shape when young, adaptability to soil conditions, and a root system that makes it more wind firm than any other western Spruce. Their silvery-blue needles are prickly to the touch and aromatic. It is an excellent border tree that provides year round screening as well as a protective summertime nesting opportunity for many songbirds. The Colorado blue spruce typically reaches a height of 30'-60' and spread of about 10'-20'. This spruce does well in full sun and is hardy in zones 1-10, 14-17, A2 and A3. Specifications: >age: 5 >height: 18 to 24" > branching spread: 16 to 24" > trunk diameter: 1/2 to 3/4"