Fifteen Years Of Warm Weather Altering DC's Landscape: “You Could Say D.C. Is The New North Carolina”...

Associated Press December 26, 2006 01:30 PM

Fifteen years of warm winter weather is beginning to change the Washington area's landscape -- with Southern species like crape myrtles having an easier time and northern types feeling less welcome, according to findings by the National Arbor Day Foundation.

The foundation has revised its map of "hardiness zones" -- with each of the nine zones showing a range of average annual low temperatures that help serve as a guide for gardeners and others.

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