In Zone 7a, the thermometer can dip as low as 0°F on the coldest day in winter, while Zone 8b can get as chilly as 15°F.

zone 7a and 7b, for example, but this level of detail is not always needed. The key point is this: Hardiness zones create a ...

On the other hand, plants that require a winter rest period ... Nashville is in USDA zone 7a, as is much of the state. You can see exactly which zone you’re in by going to https ...