The USDA Plant Hardiness Zone Map divides North America into zones ranging from 1 (coldest) to 13 (warmest). Each zone ...

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 ...

In 1927, a taxonomist at Harvard’s Arnold Arboretum, Alfred Rehder, first published his “Manual of Cultivated Trees and Shrubs Hardy in North America.” It included a map of eight hardiness ...

The USDA Plant Hardiness Zone Map divides North America into 13 zones based on the average annual minimum winter temperature. In 2023, the USDA released an updated hardiness zone map in response ...

The USDA’s winter hardiness zone map has long been the standard used by home gardeners, ... the 2023 map moved all of North Dakota, except a tiny part, into Zone 4 along with a greater portion ...

New plant hardiness zone map to help NC gardeners, farmers keep pace with climate change The new map gives guidance to growers and farmers about which plants, shrubs and vegetables are most likely ...

Plant hardiness zones are rules that inform gardeners what plants can withstand the local weather. The U.S. Department of Agriculture (USDA) designed a map that separates North America into zones ...

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 divides North America into 11 hardiness zones. Zone 1 is the coldest; zone 11 is the warmest. The United States is primarily the country that uses the hardiness zone map, although England ...

The old 2012 map, seen here, isn't as detailed or regional as the new plant hardiness map, in large part to the 2023 map including data from many more weather stations.