Pictures shown are mature trees for sake of reference. 
This product is sold in transplant size bundles of 25.
(Not full grown)
 
Black spruce is a small, narrow evergreen tree with a spire-like crown. It has descending branches, with dark, bluish-green needles, and upturned ends. Lower limbs sweep the ground. It is an excellent choice for cold northern climates and tolerant of wet sites.
Family (English): Pine
Family (botanic): Pinaceae
Foliage: Evergreen (foliage year-round)
Native locale: North America
Size range: Medium tree (25-40 feet), Large tree (more than 40 feet)
Light exposure: Full sun (6 hrs direct light daily)
Hardiness zones: Zone 2-6 
Soil preference: Acid soil, Moist, well-drained soil, Wet soil
Tolerances: Occasional drought, Wet sites
Shape or form: Narrow, Pyramidal, Upright
Growth rate: Slow
 
Excerpted from: Morton Arboretum - black spruce