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Printer Friendly Version. Understanding the USDA planting zones you live in can mean the difference between success and failure in your garden. Planting plants, vegetables and flowers that are appropriate for your US growing zone will make sure that your garden is happy and healthy year after year.
Pennsylvania Planting Zones â USDA Map Of Pennsylvania Growing Zones. Click on the image above to see a larger version. Pennsylvania Zones â Understanding Plant Hardiness. One of the first things that any new gardener should do is find where he or she lives on the Pennsylvania USDA plant hardiness map. Click on the map above to enlarge it and find your plant hardiness zone.