About FrostZoneMap

FrostZoneMap puts two things every gardener needs on one page: your USDA hardiness zone and your average frost dates, with a planting calendar. All numbers come from official public data sets (USDA, NOAA, U.S. Census Bureau) and every page names its source. When the data is not good enough, we say so instead of guessing.

Questions or corrections: sitofacile2026@outlook.it.