The AHS Plant Heat Zone Map identifies 12 zones, indicating regions where plants are subjected to high temperatures that could impact their growth, survival, and flowering times.

The American Horticulture Society has addressed this issue by developing a Plant Heat-Zone Map. The zones are based on the average number of days per year the temperature reaches 86 degrees F or ...

Heat domes, atmospheric rivers, bomb cyclones, and polar vortex—you’re not crazy, the weather is. And last week, the USDA confirmed it by releasing an updated climate zone map for 2023. For ...

Plant labels, catalogs, books and websites all classify plants according to the USDA hardiness zones. On the new map, Chicago is in Zone 6 rather than the slightly colder Zone 5.

Plant hardiness zone map an important, but not tell-all tool for gardeners The 2023 map is about 2.5 degrees warmer than the 2012 map, translating into about half of the country shifting to a ...

The USDA has updated the geographic zones that help gardeners select plants that are suitable for their regions. Learn why the map changed—and whether your area was affected.

Summer temperatures, heat accumulation, frost and snow, wind, and soil are examples of microclimates. The hardiness zone and your specific microclimates are used together to make plant selections.

Most gardeners have heard about the USDA Plant Hardiness Zone Map, but there is a lesser-known map that considers the heat tolerance of plants.

The USDA bases its plant zone maps on average minimum temperature so people in each zone know which plants can best withstand their local weather.

As climate change warms the Earth, plant hardiness zones are shifting northward. The U.S. Department of Agriculture has updated its plant hardiness zone map, which shows where various plants will ...

The USDA has recently released a new Plant Hardiness Zone Map for 2023 which shows the lowest average winter temperatures across the nation.

The plant hardiness map is divided into a total of 13 zones, each zone representing a 10-degrees-Fahrenheit range of temperatures.