Knowing which "plant-hardiness" zone you live in might be helpful with your gardening endeavors. The USDA recently updated and released a revised Plant Hardiness Zone map. This map shows the minimum temperature for each zone where a plant can survive.
Temperatures are slightly higher than they were 32 years ago when the last map was released. This one is based on 30 years of data whereas the last one was based on just 13 years. Angela O'Callaghan explains.