The tree of heaven is anything but. Native to parts of China and Taiwan, this invasive tree spreads quickly, and there's ...

Beware of toxic, invasive pests that can harm your trees. Learn the effects of these foliage-devouring insects covered in ...

When temperatures turn to freezing from late October to early December, the wingless female climbs the nearest tree and mates with the male.

Woolly bear caterpillars happen to love munching on plants most gardeners consider weeds. Encourage them as part of your weed ...

Sap is the 'blood' of a tree, helping to move nutrients from the roots to the limbs. Some sap is not unusual, but excessive amounts may mean trouble. Learn what it means when you notice a lot of sap, ...

Hummingbirds love to eat insects just as much as they love to drink nectar. Adding a wide range of nectar-rich plants can ...