plant hardiness
Plant hardiness zones changing, slowly
Beckie Fox
"Will it grow in my zone?" is the pertinent question about plant hardiness for perennials. The lines on the maps for zones are changing, slowly.
Hardiness zones are drifting
Judith Adam
The U.S. Department of Agriculture updated plant hardiness map reveals that hardiness zones are drifting, illustrating the warming trend
Global warming and plant hardiness
Garden Making
Despite the warming trend, borderline hardy plants in my garden continue to suffer winter damage. The apparent message for gardeners is that global warming hasn’t altered plant hardiness zone designations.
