growing zones

Morning Edition
6:00 am
Thu February 2, 2012

New Planting Map Reflects Warmer Winters

NH Plant Hardiness Map
USDA

The USDA recently released a new growing zone map for the entire country. The Plant Hardiness Zone Map is the guide gardeners use to determine what plants and flowers will most likely thrive in their location. This is the first significant update in more than 20 years. The new online interactive map takes advantage of much more detailed data analysis, and it’s making news because it shows that warmer winters are sustaining plants that previously would have died off in colder climates.