Grow Zones, Explained
What is a grow zone?
Grow zones are based on average annual winter temperatures. The United States Department of Agriculture (USDA) releases the zone maps, most recently in 2012, and in 1990 before that. Zones range from 1 to 13, each with an A and B inside each particular zone. For example, we live in zone 8a. Each zone is divided into 10-degree F segments.
Why is knowing my grow zone important?
Grow zones are important when selecting perennial (a plant that has a life cycle more than two years long, up to many years) edibles and ornamentals. For example, if I plant a mango, which is a perennial in zones 10-11 (but remember, we live in zone 8a), it will not survive our winter season.
How do I find my grow zone?
Go to the USDA Website and put in your zip code. Easy Shmeasy.