Those jewel-toned pigments of rubies and purples, oranges and golds, are the result of a chemical process trees and their leaves undergo each year to prepare for winter. Trees in Western ...

Photo: David Burton/The Image Bank via Getty Images. “Fallen leaves can be a good source of nutrients—but only if they’re healthy,” says Poizner. “If they are diseased or infested with ...

Nothing screams autumn quite like seeing orange, red, and yellow leaves falling from the sky. But these leaves have to land somewhere, and if they’re currently forming an autumnal blanket on your lawn ...