Rosemary plants can be successfully kept indoors over the winter if certain conditions are met. These include humidity, light and temperature.

On a talus-strewn slope in eastern California’s mountains, a gnarled tree twists toward the sky. It is Methuselah, a Great ...

Before you head out to the nursery to purchase a tree for your landscape, there are some important things to consider.

A newly developed "plant tree of life" may help scientists crack an "abominable mystery" declared by Charles Darwin. Flowering plants first evolved over 140 million years ago. Their sudden emergence ...

Plants are classified as annuals, biennials or perennials based on their life cycles. Biennials, like foxglove, have a vegetative year followed by a flowering year. Perennials, including woody shrubs ...