Pine needles and oak leaves both have pHs ranging between 3.2 and 3.8 when they fall from the tree. If those materials are incorporated into the soil before decomposing, they may have a small ...

South Bend Tribune: Look up the next time you pass a pine tree in Michiana — chances are it’s loaded with cones. Conditions this season are ripe for an abundance of these woody reproductive organs of ...

About 100 seedlings of the whitebark pine tree were planted in Central Oregon early last month. The goal is to help increase their declining population.

As a lifelong lover of trees, though, there was a specific mission I had in mind: I wanted to see a particular kind of pine tree that Pliny the Younger used to describe the plume of smoke and ash ...

Researchers in Japan have found that the taller the Japanese black pine trees (Pinus thunbergii) along the coast, the deeper their roots go into the ground. Trees with deeper roots are more ...

"My pine tree has me concerned. There are a bunch of needles that are turning brown. Is something wrong?" — S.H.