WHITE SPRUCE Picea glauca Needles are pale green with a length of 1/2-3/4″. And are slightly crowded on the upper side of the stem. HARDINESS ZONES | 2-6 MATURE HEIGHT | 40-60 ft SOIL | Acidic, loamy, sandy, and clay with some drought tolerance SITE | Full sun,... SERBIAN SPRUCE Picea omorika Needles are a dark green color and flat and pointy. They are 1″ in length. HARDINESS ZONES | 4-7 MATURE HEIGHT | 50-60 ft SOIL | Acidic, loamy, sandy, and clay SITE | Full sun or partial shade with moist and well-drained... NORWAY SPRUCE Picea abies Needles are a dark green and roughly 1/2-1″ in length. HARDINESS ZONES | 3-7 MATURE HEIGHT | 40-60 ft SOIL | Acidic, loamy, sandy, and clay SITE | Full sun,... COLORADO BLUE SPRUCE Picea pungens Needles are a silvery, blue-green color. They are 1-1.5″ in length with a stiff and rough texture. HARDINESS ZONES | 2-7 MATURE HEIGHT | 50-75 ft SOIL | Very adaptable – acidic, loamy, rich, sandy, and clay SITE | Full... BLACK SPRUCE Picea mariana Needles are a blue-green color, short, stiff and four-sided. HARDINESS ZONES | 2-6 MATURE HEIGHT | 30-50 ft SOIL | Acidic SITE | Full sun, moist and... BLACK HILLS SPRUCE Picea glauca ‘Densata’ Needles are a dark green to blue-green color. They have a somewhat rigid texture and are 1/3-3/4″ in length. HARDINESS ZONES | 2-6 MATURE HEIGHT | 30-60 ft SOIL | Acidic, gravelly/sandy loam and fine clay SITE | Full... 