The latest photo challenge calls for you to take and send in your best pictures of trees. Here's how to enter.

For some sprawling greenery under your fruit trees, check out these ground covers that specifically pair well with a variety ...

Nine years after the 2012 High Park Fire burned a stand of lodgepole pine that had been severely affected by the mountain pine beetle, lodgepole and aspen saplings were rebounding on this slope in the ...

Researchers found a hidden mathematical rule in tree-like art. Branch thickness follows a predictable ratio, making trees ...