Picea glauca 'Sander's Blue' is a narrow upright blue form of dwarf Alberta spruce. This blue plant color is variable. It usually starts out very blue when young and juvenile and starts turning green as it gets older. On older plants it produces a nice tapestry effect between the Blue and green needles.
After 10 years of growth, a mature specimen will measure 3 feet (1 m) tall and 2 feet (60 cm) wide, an annual growth rate of 3 to 4 inches (15 - 20 cm).
'Sander's Blue' is an attractive, slate-blue form of the Alberta Spruce. With age, the Blue colors mix with green giving a wonderful multi-color effect. Plant this form wherever your garden needs some relief from plain, green foliage. Blends well with all conifers and perennials for companion or as a novel focal point.
This cultivar originated as a color sport of a specimen of 'Conica', found by an individual named Sanders. Iseli Nursery of Boring Oregon received propagation material in the late 70s and went about introducing it to the nursery trade shortly thereafter.