The USDA Plant Hardiness Zone Map is a guide that helps gardeners and farmers determine which plants are most likely to thrive in their specific geographic area. It divides the United States into zones based on average annual minimum winter temperatures, ranging from Zone 1 (coldest) to Zone 13 (warmest). Each zone is further divided into sub-zones, allowing for more precise planting decisions. By using this map, individuals can select plants that are well-suited to their local climate conditions. This ensures better growth and survival rates, making it a valuable tool for anyone interested in gardening or agriculture.