When Robert Clements first moved to Vermont more than 50 years ago, he didn't know an ash tree from a hole in the ground.

Yet another invasive species is creeping through South Carolina, this one attacking ash trees.

As Australian cities heat up, street trees are needed more than ever for their cooling. It turns out many are more resilient ...

to the Bodhi tree where Buddha attained enlightenment; and Yggdrasill, the ash tree that supports the world in Norse mythology. “Trees have always been important across cultures,” says Provan.

Like zucchini butter and horchata overnight oats.