Planting Scheduling: Tips on Growing Zones & Frost Dates
Hardiness zone and frost dates are used differently to decide what and when to plant.
Hardiness zones measure extreme cold temperatures to tell you what can survive as a perennial where you live.
Today's interactive hardiness maps give results down to the town you live in.
Hardiness zones are designed to tell us which perennials can survive where we live, based on the worst winter temperatures they will endure.
Many countries have their own plant hardiness maps, or have maps available that have been constructed using the USDA model.
Use hardiness zone information to tell you what trees and perennials you can grow successfully.
For annual and vegetable gardening, it is the frost dates that matter the most.
Learn what your plant hardiness zone is and your frost dates, too. Do not assume that all people living in your zone have the same frost dates or growing season--they do not.