Usda Growing Zones 2024. The new map—jointly developed by usda's agricultural research service (ars) and oregon state university's. The plant hardiness zones detailed in the new map define 13 distinct zones across the us and its territories.
Check the official usda plant hardiness zone map below, or visit the usda. Zone 1 is the coldest area where minimum temperatures, on average, will go down to minus 60°f (.