Also called green spruce and white spruce.

Native to USA 🗻︎ Rocky Mountains:  Colorado and Wyoming.  Has been widely planted outside this area, as an ornamental. Invasive > in USA+Canada Invasive > report it!

Uses by native peoples
(Ethnobotany database)
Picea hosts caterpillars of 158 species
of butterflies and moths, in some areas.

In Michigan, many Colorado blue spruce are dying or suffering from spruce decline, apparently caused by fungal diseases Rhizosphaera needlecast Rhizosphaera kalkhoffii , cytospora canker Leucostoma kunzei and Sphaeropsis tip blight Diplodia pinea ;  and insect diseases gall adelgid Adelges cooleyi and spruce spider mite Olibonhychus ununguis.

Learn more about Colorado blue spruce Picea pungens

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