"Average winter temperatures are up, and this is allowing some species to thrive, or at least survive, in areas that were previously too cold for them ... need to consider as you look at the new ...
In conversation with Lydia Beaumont, planting expert at Gardeners' Yard, she explains that USDA zones are geographic areas ...
Whenever you purchase a new perennial plant, shrub, or tree, you've probably noticed information about hardiness zones ... In addition, the map also doesn't address how long plants can survive cold ...