The United States is divided into 13 different plant hardiness zones, each with "A" and "B" subdivisions. This is a number assigned to a plant that tells you how cold of a temperature the plant can ...

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On Nov. 15, the U.S. Department of Agriculture released a revised version of its Plant Hardiness Zone Map. This map is what home gardeners, as well as professional growers, use to determine which ...

WASHINGTON — If you have any kind of green thumb, you probably know that there are different planting zones depending on where you live. The geographic zones are defined by how cold it gets in the ...

PHOENIX — The U.S. Department of Agriculture’s “plant hardiness zone map” was updated Wednesday for the first time in a decade, depicting the impact climate change will have on gardens and yards ...

Knowing the precise time to get annual plants into the ground and whether or not a perennial will grow in a given location is often buried in local community lore, but the US Department of Agriculture ...

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. By Remy Tumin ...