Blue spruce (Picea pungens f. glauca), also called Colorado blue spruce, is a beautiful tree with blue-gray needles. Being colorful and relatively drought tolerant, it’s a favorite of many homeowners ...

In this episode of ID That Tree, Purdue Extension forester Lenny Farlee introduces the Black Spruce. This species is found in bogs, wetlands, and sometimes dry sites within the North Woods of Upper ...

In this episode of ID That Tree, Purdue Extension forester Lenny Farlee introduces the White Spruce. This species is found in the North Woods of Northern Wisconsin and the Upper Peninsula of Michigan.

A new study, published in the Proceedings of the National Academy of Sciences (PNAS), finds that black spruce trees — a key species on the boreal landscape for millennia — are losing their resilience ...