Sometimes called “growing zones” or “gardening zones,” USDA plant hardiness zones refer to areas of a map developed by the ...

A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual extreme minimum temperature, so people in those areas know which plants can ...

For example, Alaska has zones 1 to 8. If you need specific information about the hardiness zone where you live, the USDA ...