Us Planting Zones 2024. The making of karachi’s first urban forest, pictured in 2000, 2017 and 2024: Department of agriculture’s ” plant hardiness zone map ” was updated wednesday for the first time in a decade, and it shows the impact that climate.
Each growing zone is 10°f warmer (or colder) in an average winter than the adjacent. Will the new map change what gardeners should plant this spring?