To check when the last winter frost is estimated for your area, find your area on a frost date map. Because frost-free dates ...

With temperatures in the upper 30s again this morning at Twin Cities Airport, we’re still officially “frost free” this fall in the core of the metro. The average date of our first frost is ...

WASHINGTON — Southern staples like magnolia trees and camellias may now be able to grow without frost damage in once-frigid Boston. The U.S. Department of Agriculture’s Plant Hardiness Zone ...

Creating frost-free zones on larger surfaces could have a variety of applications – consider the water that forms and freezes on heat pump coils or the deicing with harsh chemicals that has to ...

The U.S. Department of Agriculture’s ” plant hardiness zone map ” was updated Wednesday for the first time in a decade, and it shows the impact that climate change will have on gardens and ...