Picea glauca 'Conica'
White Spruce
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White Spruce (Picea glauca 'Conica') - Description
Picea glauca (white spruce) is a species of spruce native to the northern temperate and boreal forests in North America, from central Alaska to as far east as the Avalon Peninsula in Newfoundland, and south to northern Montana, Minnesota, Wisconsin, Michigan, upstate New York, Vermont, New Hampshire, and Maine; there is also an isolated population in the Black Hills of South Dakota and Wyoming. It is also known as Canadian spruce, skunk spruce, cat spruce, Black Hills spruce, western white spruce, Alberta white spruce, and Porsild spruce.
White Spruce (Picea glauca 'Conica') - Growth
Grows best in full sun.
White Spruce (Picea glauca 'Conica') - Planting
Sow seeds in containers in a cold frame in spring.
White Spruce (Picea glauca 'Conica') - Pest
In winter, check for green aphids amongst the needles. Pine needle scale can also be a problem. In the Rocky Mountain states, spider mites and tussock moths can infest Spruces. Cooley Spruce gall adelgid is an insect similar to the aphid that feeds on the tips of branches of Spruces and causes a green gall to form. The galls gradually turn color to a light purplish tan.
White Spruce (Picea glauca 'Conica') - Interesting facts
Many species of Picea look very similar to Firs; however, the cones of Picea hang from the branches as opposed to upright on the branch as Firs do.
White Spruce (Picea glauca 'Conica') - Soil and irrigation
Once established Spruces need very little water except for Brewer's Weeping Spruce (P. breweriana), which needs regular water.
