Not sure if this was posted before or if it is in the right spot. But I just read that after 22 years the USDA has shifted the hardiness zones this past January. I went from 5b to 6a. I thought this might be an interesting tidbit for those who did't know. http://planthardiness.ars.usda.gov/PHZMWeb/
Jerry beat you to this one last month but it gives the newer members a chance to check out the changes and see where they are now. Is anyone warmer? - The new USDA Hardiness Map