Colorado Blue Spruce
Found throughout the central Rockies, this spruce borrows its name from the Centennial State and has stout, three-sided needles about three quarters of an inch in length.  Its foliage can vary in color from dark green to indigo blue, as pictured. 

White Spruce
Spanning the entire width of North America, this spruce is a decidedly Northland tree found throughout the lake-studded Canadian Shield and northern United States.  Its delicate, blue-green foliage with needles about one-half inch in length is very appealing. 

White Pine
Widely distributed throughout the forests of eastern North America, this tree, native to the Northeast, has soft, lacy, blue-green foliage with needles about three to four inches in length.  The White Pine is a  very graceful-looking evergreen with a pleasant fragrance.

Norway Spruce
Norway spruce grows may grow to 130 feet tall. Diameter may reach as much as two feet on older trees. It is readily identified by its dark green needles and drooping branchlets. Trees have dark green crown with a triangular shape. Leaves (needles) are 4-sided (rectangular in section), 1/2-1 inch long, and sharp or somewhat blunt at the tip.

Fraser Fir
Also known as "Southern Balsam," this stately fir, native to the Great Smoky Mountains of western North Carolina and eastern Tennessee, is closely related to its northern counterpart.  Its soft, emerald green needles with silvery undersides are about three-quarters of an inch in length.  Its bottlebrush texture, sturdy branching, and outstanding needle retention make it a superb Christmas tree whose popularity has grown rapidly in recent years.