RELATED: Wisconsin Plant Hardiness Zone changes; what it means for you. Scientists also use the map for data in many research models, such as those modeling the spread of exotic weeds and insects.

So, the new map shows us in Zone 7B instead of Zone 7A – a difference of 5 degrees. Most of the country shifted in this manner with the warming trend showing a plus 3.2 degrees overall. What ...

The new map, with 13 zones, adds Zone 12 (50-60 degrees Fahrenheit band) and Zone 13 (60-70 degrees Fahrenheit). Each zone is a 10-degree Fahrenheit band, with each band divided into Fahrenheit ...

The USDA and Harvard University developed the hardiness zones during the 1920s and '30s, and the hardiness zone maps were first published by the U.S. Department of Agriculture in 1960.

Plant for Zones 8a or 7b, plants that can survive a winter temperature of 5 F or 10 F. You'll have better odds of not having to replace that plant (i.e., buy it again) over the next decade.

Zone 9 and 10. These hardiness zones have average minimum winter temperatures between 20 degrees Fahrenheit and 40 degrees Fahrenheit, meaning many of the native plants are heat-loving and perfect ...

The hardiness zone map is not a guarantee your plant will survive. It's important to understand that the USDA hardiness zone is an indication of which plants are most likely to thrive in a location.

The zones are based on the average annual lowest winter temperature in a location, and each numeric zone spans 10 degrees (F) and is further divided into 5-degree “a” and “b” sections.

It’s often said that the key to successful, sustainable plants is putting the right plant in the right place. But first, you need to know your place. That begins by learning your hardiness zone. The ...

Each hardiness zone represents a 10-degree range in temperature and is subdivided into “a” and “b,” each representing 5 degrees’ difference. For example, ...