Colorado spruce are very common conifers for home landscapes. These trees (Picea pungens) are native to the mountainous areas of Colorado, Utah and Wyoming and grow slowly into large trees – to ...
Scots pine grows in USDA hardiness zones 2 to 9. Considered a slow grower, Colorado Blue Spruce, Picea pungens, can reach Christmas tree size in five years at 5 feet tall when started as a 2-foot ...