My area has switched from 9b to 10a, which feels accurate, as winter frosts seem to be fewer and fewer each year. Pretty bleak for the hope that my cherry tree will ever produce :(
Thanky. I have this great textbook a friend wrote about gardening, but it refers a lot to hardiness zones and this will help a lot. The only thing I can grow are artichokes and dirt so maybe someday I can grow tomatoes.