Usda Plant Zones 2024 Pdf. On the 2012 plant hardiness zone map, greater columbus (and a good portion of the rest of ohio) was in zone 6a, where the average lowest temperature. Plant hardiness zones are geographical regions defined by their minimum growing temperatures to help gardeners determine which plants are most likely to thrive in their area.
Plant hardiness zones are geographical regions defined by their minimum growing temperatures to help gardeners determine which plants are most likely to thrive in their area. On the 2012 plant hardiness zone map, greater columbus (and a good portion of the rest of ohio) was in zone 6a, where the average lowest temperature.