Extension Services
Want to know about local planting conditions? How to control local bugs and pests? Want to know why nothing will grow in your soil? You should start with your local Agricultural Extension Office. Click on the link above to find the office closest to you.

USDA Plant Hardiness Zone Map
This 1990 version shows in detail the lowest temperatures that can be expected each year in the United States, Canada, and Mexico. These temperatures are referred to as "average annual minimum temperatures" and are based on the lowest temperatures recorded for each of the years 1974 to 1986 in the United States and Canada and 1971 to 1984 in Mexico.