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Ohio Planting Calendar

Ohio spans USDA hardiness zones 5b, 6a, 6b. Planting dates vary significantly across the state depending on your zone. Find your county on the map below for exact frost dates and planting windows.

Find Your County

Click any county to see your local planting calendar with exact frost dates and planting windows.

Zones in Ohio

Growing Season Comparison

Frost Dates & Growing Season by County

View all 88 Ohio counties with frost dates
County Zone Last Frost First Frost Growing Days
Adams County 6b Apr 22 Oct 21 182
Allen County 6a Apr 23 Oct 22 182
Ashland County 6a Apr 27 Oct 18 174
Ashtabula County 6a Apr 29 Oct 22 176
Athens County 6b Apr 20 Oct 26 189
Auglaize County 6a Apr 25 Oct 21 179
Belmont County 6b Apr 27 Oct 23 179
Brown County 6b Apr 18 Oct 24 189
Butler County 6b Apr 20 Oct 21 184
Carroll County 6b Apr 30 Oct 15 168
Champaign County 6a Apr 25 Oct 17 175
Clark County 6a Apr 18 Oct 21 186
Clermont County 6b Apr 17 Oct 22 188
Clinton County 6b Apr 16 Oct 22 189
Columbiana County 6a Apr 30 Oct 18 171
Coshocton County 6b Apr 29 Oct 12 166
Crawford County 6a Apr 26 Oct 22 179
Cuyahoga County 6b Apr 29 Oct 20 174
Darke County 6a Apr 25 Oct 17 175
Defiance County 6a Apr 26 Oct 17 174
Delaware County 6b Apr 25 Oct 21 179
Erie County 6b Apr 27 Oct 22 178
Fairfield County 6a Apr 23 Oct 22 182
Fayette County 6b Apr 22 Oct 21 182
Franklin County 6b Apr 20 Oct 21 184
Fulton County 6a Apr 29 Oct 15 169
Gallia County 6b Apr 23 Oct 21 181
Geauga County 6a May 5 Oct 13 161
Greene County 6b Apr 23 Oct 19 179
Guernsey County 6b Apr 30 Oct 16 169
Hamilton County 6b Apr 16 Oct 21 188
Hancock County 6a Apr 25 Oct 22 180
Hardin County 6a Apr 26 Oct 20 177
Harrison County 6b Apr 26 Oct 25 182
Henry County 6a Apr 28 Oct 17 172
Highland County 6b Apr 22 Oct 21 182
Hocking County 6b Apr 23 Oct 21 181
Holmes County 6a May 2 Oct 11 162
Huron County 6a Apr 27 Oct 18 174
Jackson County 6b Apr 21 Oct 22 184
Jefferson County 6b Apr 23 Oct 29 189
Knox County 6a Apr 29 Oct 15 169
Lake County 7a May 5 Oct 13 161
Lawrence County 7a Apr 23 Oct 21 181
Licking County 6a Apr 24 Oct 19 178
Logan County 6a Apr 24 Oct 19 178
Lorain County 6b Apr 29 Oct 16 170
Lucas County 6b Apr 27 Oct 17 173
Madison County 6b Apr 22 Oct 20 181
Mahoning County 6a Apr 30 Oct 18 171
Marion County 6a Apr 26 Oct 20 177
Medina County 6a Apr 28 Oct 17 172
Meigs County 6b Apr 24 Oct 22 181
Mercer County 6a Apr 25 Oct 17 175
Miami County 6a Apr 25 Oct 17 175
Monroe County 6b Apr 27 Oct 20 176
Montgomery County 6b Apr 19 Oct 21 185
Morgan County 6b Apr 27 Oct 20 176
Morrow County 6a Apr 29 Oct 15 169
Muskingum County 6b Apr 29 Oct 16 170
Noble County 6b Apr 27 Oct 20 176
Ottawa County 6b Apr 25 Oct 25 183
Paulding County 6a Apr 25 Oct 21 179
Perry County 6a Apr 27 Oct 19 175
Pickaway County 6b Apr 22 Oct 21 182
Pike County 6b Apr 22 Oct 21 182
Portage County 6a May 4 Oct 13 162
Preble County 6a Apr 24 Oct 21 180
Putnam County 6a Apr 23 Oct 22 182
Richland County 6a Apr 27 Oct 18 174
Ross County 6b Apr 22 Oct 21 182
Sandusky County 6b Apr 25 Oct 22 180
Scioto County 6b Apr 22 Oct 21 182
Seneca County 6a Apr 25 Oct 22 180
Shelby County 6a Apr 25 Oct 19 177
Stark County 6b Apr 30 Oct 18 171
Summit County 6b May 4 Oct 13 162
Trumbull County 6a May 4 Oct 17 166
Tuscarawas County 6b Apr 29 Oct 16 170
Union County 6a Apr 25 Oct 19 177
Van Wert County 6a Apr 25 Oct 22 180
Vinton County 6b Apr 21 Oct 22 184
Warren County 6b Apr 16 Oct 22 189
Washington County 6b Apr 28 Oct 19 174
Wayne County 6a May 2 Oct 11 162
Williams County 6a Apr 29 Oct 14 168
Wood County 6b Apr 27 Oct 21 177
Wyandot County 6a Apr 25 Oct 22 180

🥬 Vegetables

Browse all 116 vegetables you can grow in Ohio

🍓 Fruits

Browse all 34 fruits you can grow in Ohio

🌿 Herbs

Browse all 42 herbs you can grow in Ohio

Monthly Planting Guide for Ohio

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.