White Spruce Sanders Blue This blue leaved Spruce originated as a cultivar from P. glauca conica. A slow growing conifer which keeps its tight conical shape for many years, Picea glauca Sanders Blue is a low maintenance conifer, with attractive blue/green foliage, suitable for pots or as a specimen in a shrub bed. With age it will form a 3m tall sturdy domed tree. Site: Inland exposedSoil: Well drained, will tolerate acid to alkalinePosition: Full sunSeason of Interest: Evergreen, nice shape and foliage Hardiness: Fully hardyHeight: Slowly up to 10ft (3m) in 20-30 years