A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual extreme minimum temperature, so people in those areas know which plants can ...

The U.S. Department of Agriculture (USDA) has a Plant Hardiness Zone Map that divides the U.S. into 13 different zones, which helps gardeners choose plants that can survive in their respective ...

Spring has begun in Louisiana and flowers are blooming, but some garden plants may not grow due hardiness zones. So, here's Louisiana's growing zones.