In nature, you’ll see several types of spruce trees (Picea spp.) that are beautiful, rugged evergreens capable of lasting ...

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 ...

A thin section of a very well-preserved piece of Picea (spruce) driftwood. The tree’s anatomical details allowed Hole to identify and trace it.