PLANTS

NASA and researchers at the University of Arizona are building a greenhouse that can mimic conditions on Earth to feed astronauts on the moon and on Mars.

Some species have evolved to look like an entirely different type of living creature.

An unseasonably warm winter (what is seasonal anymore, anyway?) has forced organizers to start the capital’s beloved annual Cherry Blossom Festival one week early.

It eventually made its way to Washington, D.C.

Certain Christmas traditions never seem to go out of style. Along with wreaths, gingerbread cookies, and reruns of 'A Christmas Story' sits the poinsettia, a red-tinged leafy arrangement that’s become synonymous with the holiday.

The quest for orchids once involved fierce rivalries, huge sums of money, and several grisly deaths.

Plant stems act like fiber-optic cables running light down to underground roots.

It takes about an hour to amble to the center of the maze.

This tomato plant can sense and defend itself against invading plants.

Here's a good reason to avoid ditching those veggie scraps.

Sophisticated laser scans of trees at night showed the trees’ branches drooping after dark and perking up around dawn.

The difference between delicious and deadly can be deviously small.