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

The new version of the map includes 13 zones, with the addition for the first time of zones 12 (50-60 degrees F) and 13 (60-70 degrees F). U.S. Department of Agriculture hide caption ...

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 ...

As greenhouse gas emissions nudge temperatures higher, trees’ growing ranges are shifting northward, projections from the U.S. Forest Service show. Trees near the southern edge of their ...

In total, the map includes 26 hardiness zone and half-zone designations, ranging from 1a in the coldest region of Alaska, to 13b along the balmiest parts of the Puerto Rico coast. (The higher the ...

The online map displays 13 zones for the country, each divided by 10 degrees Fahrenheit of difference, moving from coldest to warmest. Each zone also has half-zones, with 5 degrees of difference ...

Despite the development of a new plant hardiness map that puts Billings in a warmer climatic zone, local arborists Wednesday remained skeptical and cautioned against a rush to plant new ...

If you’re still interested, here’s our guide to growing your own tree for a future holiday. Choosing your tree. The tree you decide to plant will depend on the hardiness zone and climate in your ...

The map divides North America into 13 zones, of 10 degrees each, ranging from -60 F to 70 F. So, for zone 4, the minimum average temperatures are between -30 F and -20 F, which includes the entire ...

Colorado gardeners eyeing warmer USDA growing zones should be careful, experts say The map was updated for the first time since 2012, but don’t load up on heat-loving perennials just yet ...