It’s the first time since 1990 that the U.S. Department of Agriculture has revised the official guide for the nation’s 80 million gardeners, and much has changed. Nearly entire states, such as Ohio, Nebraska and Texas, are in warmer zones.
The new guide, unveiled Wednesday at the National Arboretum, arrives just as many home gardeners are receiving their seed catalogs and dreaming of lush flower beds in the spring.
It reflects a new reality: The coldest day of the year isn’t as cold as it used to be, so some plants and trees can now survive farther north. Read More