CHRISTMAS TREE: COLORADO BLUE SPRUCE

The Colorado Blue Spruce tree takes its name from the color of its needles and its Spruce Family origins.  The blue spruce has a very wide range as shown below.

It's characteristics are ideally suited for Christmas tree decorations:

Here are 2 pictures of the Blue Spruce Tree. 

The natural maximum height range of the Colorado Blue Spruce tree is 100-115 feet, with a top age range of 400+ years.  Here is a close-up of the frond and new-growth needles.  Note that the dense needle formation makes an "ornament hook" a prerequisite for hanging Christmas tree ornaments on this tree.