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 White Spruce. This species is found in the North Woods of Northern Wisconsin and the Upper Peninsula of Michigan.

Female (left) and male spruce cones at the Arnold Arboretum. It's a more common sight to see separate male and female cones like this. (Courtesy William "Ned" Friedman) Every spring the conifer trees ...

Gigantic glistening snowflakes gently tumbled from the gray sky to land on thick branches of the spruce outside the picture window. Although I had a long list of things to do, the swirling snowflakes ...

Today’s story is about something that has already happened, and something else that might happen. Usually I focus in on one ...

The new research suggests that substances like gold can accumulate and solidify in plant tissues and form part of its defense ...