A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual ...

While there are different ways to map climates, USDA Plant Hardiness Zones are based ... located further east, is only zone 7b. Despite its warmth, San Francisco is far rainier on average than ...

If you haven't started yet, it's time to get your spring garden ready in Tennessee. Here's a look at what to grow and when to start it.

Tennessee has a variety of plant hardiness ... the different zones: West Tennessee: The southern part, including Memphis, is designated an 8a zone, with areas further north in 7b.