The United States Department of Agriculture (USDA) Plant Hardiness Zone Map divides North America into 13 zones based on the average annual minimum winter temperature. This map assists gardeners and growers in determining which plants are most likely to thrive in a given location. Each zone represents a 10F (5.6C) difference in average minimum winter temperature, providing a valuable tool for selecting plants that can withstand the cold conditions of a specific region.
Understanding the appropriate zone for a location is crucial for successful gardening and landscaping. Planting species that are not cold-hardy enough for a region can result in plant death during the winter months. Utilizing this information allows for informed decisions, improving plant survival rates and promoting healthy, flourishing landscapes. Historically, these maps have been updated to reflect changing climate patterns and improved data collection methods, ensuring the most accurate information is available.
