Dwarf Alberta Spruce
Picea glauca 'Conica'
Text and photo by Ellen Nibali
With a perfect "Christmas tree" shape, dense foliage, and extremely slow growth, dwarf Alberta spruce has been a favorite since discovered in 1904. Remember--it's "Alberta" as in Alberta, Canada, a much cooler environment than Maryland.
Fairly adaptable nevertheless, this spruce likes well drained moist soil, full sun, and will tolerate some shade. Baking drought and reflected light (e.g. off house siding), however, can lead to spider mites. Encourage predator insects that eat spider mites by only spraying with horticultural oil or soap or simply hosing them off the tree.
The thin needles of Alberta spruce give a fuzzy appearance. Growing only 2-4" yearly, it can reach 10-12 feet in height, so give it space to spread. The pyramidal shape lends itself to balanced and formal designs as well as shrub and mixed borders.