In the news recently, the U.S. Department of Agriculture revised its plant hardiness zone map for the first time in more than a decade. As always, this is a hot topic in horticultural circles.

The new plant hardiness map uses data from 13,412 weather stations, compared to the 7,983 that were used for the 2012 edition. The map is based on 30-year averages (1991 to 2020) ...

About half of the country moved into a slightly warmer zone in the Agriculture Department’s new “plant hardiness” map, an important guide for gardeners. Climate change may be a factor.

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

Plant hardiness zones are shifting northward nationwide as the country continues to warm, affecting farmers, gardeners and ...

“The USDA plant hardiness zone map gives us an idea of our average high and low temperatures,” says McClure. She comes from a horticultural family and manages about 100 volunteer master gardeners ...

USDA updates plant hardiness map for the first time in more than a decade NPR's A Martinez talks to Ashlie Thomas, author of How to Become a Gardener, about the map gardeners and farmers use to ...

Map developers from USDA and Oregon State University, updated the plant hardiness zoning for half of the country based on 30 years of climate data.

The U.S. Department of Agriculture (USDA) has updated its Plant Hardiness Zone Map — the first revision since 2012. It shows that Massachusetts is getting warmer, leading to more options for ...

Since the last map was released in 2012, all of Wisconsin's hardiness zones have shifted about half a zone warmer, said Laura Jull, associate professor in the plant and agrosystem sciences ...