Definition of Alberta spruce
: a white spruce (Picea glauca albertiana) of the northwestern United States and Canada;
especially
: a slow-growing, dwarf, cone-shaped cultivar (Picea glauca albertiana conica) grown as an ornamental
- Many homeowners use Alberta spruce as year-round color near their front door.
- —Marilee Spanjian, The Tennessean, 23 Feb. 2003
- Dwarf Alberta spruce grows in the perfect, conical, Christmas-tree form; it is densely covered with foliage, so decorations don't hang as much as protrude from its surface.
- —Marty Wingate, Seattle Post-Intelligencer, 6 Dec. 2001
