Hardiness Zones 101 The USDA Plant Hardiness Zone Map consists of 13 individual zones that take in all of the contiguous United States, plus Alaska, Hawaii, and Puerto Rico. The first zone lies at ...

The importance of hardiness zones lies in their ability to help gardeners and farmers choose plants that will thrive in their ...

Plant hardiness zones are based on the coldest annual temperatures experienced by a given area. The map below shows us plant zones throughout southern and central California. While the complex ...

According to the U.S. Department of Agriculture, a USDA zone helps gardeners and growers determine which plants are most likely to thrive in their location. Need a break? Play the USA TODAY Daily ...