Picea pungens Koster

Colorado Spruce Koster

A beautiful tree with prickly, silvery-blue needles, Picea pungens Koster is a compact, rather slow-growing, small to medium-sized, evergreen tree; it has a tidy, conical habit. This tree makes a great accent plant in the landscape, and is particularly good in an architectural or low maintenance garden. An easy tree, it needs no pruning, is disease-free, but may be attacked by aphids and conifer red spider mite. It must have acidic to neutral soil, as it will not tolerate lime.

Site: Shelter from cold, drying winds
Soil: Moist but well-drained, acid to neutral soil

Position: Full sun
Season of interest: All year
Hardiness: Extremely hardy
Height:  26-40’ (8-12m) Spread: 8-13’ (2.5-4m) in 20-50 years
Size: Pot | 7.5L
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