Ohio is part of 4 hardiness zones, 5b through 7a, on a scale that goes from 1a to 13b. "In 5b, the temperature range is -15 to -10 degrees Fahrenheit for the average annual extreme minimum ...
Trouble seeing the map? Click here to view the planting zones for the Northeast U.S. 'I miss you so': 1930s love letters found in bathroom wall during Ohio home renovation Forget the bathroom.