About two-thirds of the state has slid to a warmer half zone since that last edition in 2012, according to the USDA. As the climate has changed, so have farming plans in Maine.

The data, reflected in the updated Plant Hardiness Zone Map in November, helps gardeners, farmers, insurers and other officials decide what to plant, how much to charge farmers for crop insurance ...

The USDA 2012 Plant Hardiness Zone Map. USDA The USDA Plant Hardiness Zone Map divides the United States and Canada into 13 zones, based on the average annual minimum winter temperature.

The USDA updated its map of plant hardiness zones for the first time in over a decade. The new map shows that half the country has shifted to warmer zones. The updated zones could allow gardeners to ...

The 2023 map is about 2.5 degrees warmer than the 2012 map, translating into about half of the country shifting to a warmer zone. SUBSCRIBE NOW! Read Today's Paper Friday, June 6 ...

The new map reflects that many areas have become warmer since 1990, when the previous USDA hardiness zone map was published. Significant portions of many states have shifted a least one full zone ...

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.