As plant hardiness zones shift from climate change, gardeners must rethink their choices. Discover what these changes mean ...

The red zones issued today indicate that conditions in some parts of the U.S. could reach this point. According to new maps from the Weather Prediction Center, several states will face "red zones ...

The USDA bases its plant zone maps on average minimum temperature so people in each zone know which plants can best withstand their local weather. For example, a tropical plant that needs 40 ...