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 ...

However, average minimum temperatures vary widely from south to north Wisconsin, meaning plants that may do well in Milwaukee ...

With the arrival of spring in North America, many people are gravitating ... of Agriculture’s recent update of its plant hardiness zone map, which has long helped gardeners and growers figure ...

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.