The plant hardiness zone map is also not the only map they produce: there are species maps, for example; there are maps showing where 62 different species of trees are growing in Canada ...

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 U.S. Department of Agriculture (USDA) has released the latest version of its Plant Hardiness Zone Map — the first update since 2012. The familiar color-coded map helps gardeners, farmers and ...

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 ...

The USDA Plant Hardiness Zone Map consists of 13 individual zones that take in all of the contiguous United States, plus Alaska, Hawaii, and Puerto Rico. The first zone lies at the coldest and ...

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 ...

In November, the U.S. Department of Agriculture released a new version of its Plant Hardiness Zone Map, which essentially provides a guide for gardeners and growers about which perennial plants ...

The U.S. Department of Agriculture published a new version of its well-known Plant Hardiness Zone map earlier this month, an online tool that classifies growing regions based on extremely cold ...

In the 1960s, the USDA adopted and adapted Rehder’s concept, creating the first official USDA Plant Hardiness Zone Map. USDA Hardiness Zone Map (Contributed) Since its initial release ...

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.

On Nov. 15, the U.S. Department of Agriculture (USDA) released a new version of its Plant Hardiness Zone Map, the first time it's done so since 2012. According to a release from the USDA ...