The black spruce is in the phylum Pinophyta, which includes all conifers.
Blue Spruce trees will eventually produce cones but they will be spruce cones.
It should be--- Behind my house is a tall blue spruce tree.
The Blue Spruce Picea pungens is in the Genus Picea.
The scientific name for a blue spruce is Picea pungens.
The botanical name for the Colorado blue spruce tree is the picea pugens
The Colorado Blue Spruce is a Compound Leaf
Two states have the blue spruce as their state tree, though these 2 states have two different variations of the blue spruce. These states are Colorado and Utah.
It became its tree because The Blue Spruce has the most trees in Colorado.
I have been told by a tree grower that bonemeal will keep a blue spruce blue because of the sulphate content
The scientific name for the blue spruce tree is pigea pungens
blue spruce can grow about 75 feet tall. Here is a link to information about Colorado Blue Spruce growing to 50 meters: http://www.nativetreesociety.org/fieldtrips/us_west/colorado/2009-leverett/20090620-bluespruce.htm (scroll down a bit to find info on the blue spruce) )P.S. Scrolling down does not give you more info on the Colorado Blue Spruce Tree.)