A new zone, that is. The USDA has released an updated hardiness map showing how the climate has shifted. We've gone up a half a zone. From 5a to 5b... although the zone line is only a few miles away we're now near 5a and not 4b which we used to be. It appears that most places have shifted. If you click here you'll get to an interactive map with a slide bar to show the differences in old and new. Pretty dramatic and scary!
Woe to those naysayers about climate change. Even the USDA has gotten on board. And this map is just represents the shift from 1990 to 2012. Eek. Maybe I'll have to revise my planting schedule... or maybe not.