Columnar Black Spruce

Columnar Black Spruce is Picea mariana ‘Fastigiata’, a narrow selection described in specialist conifer references. Evergreen blue-green needles give this upright tree year-round structure. ## Growing Conditions Black spruce grows in sun or light shade and adapts to a range of sites, from moist organic ground to well-drained soil. The [Trees and Shrubs Online account](https://www.treesandshrubsonline.org/articles/picea/picea-mariana/) describes the species as slow growing and notes the narrow columnar form of ‘Fastigiata’. Give the eventual crown room, since cultivated size varies with growing conditions. ## Seasonal Interest Evergreen blue-green needles give the tree year-round structure. Use it as a vertical accent where its narrow outline complements lower shrubs or open lawn; allow room for the eventual crown and avoid planting where overhead wires constrain its leader. ## Maintenance Provide regular water while the tree establishes, then water during extended drought. Maintain a mulch ring over the root zone and keep mulch clear of the trunk. Prune only damaged or crossing branches, since hard shearing changes the natural columnar outline.