Usda Planting Zone Map 2024. Over time they have changed a bit as temperatures have gotten warmer and the maps have updated. Be conservative when trying new.
Each growing zone is 10°f warmer (or colder) in an average winter than the adjacent zone. Down to the street you live on, the 2023 usda hardiness zone map shares — in detail — what climate conditions plants need to thrive at a given location.