When to plant sweet corn in Ohio
Ohio spans USDA zones 6a–7a, so the right time to plant sweet corn shifts by weeks across the state. The window to sow seed directly outdoors runs from about April 8 in Cleveland to May 8 in Warren — below are local dates for 187 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Columbus | 6b | April 20 | October 24 | April 20 – May 4 |
| Cleveland | 7a | April 8 | November 12 | April 8 – April 22 |
| Cincinnati | 6b | April 16 | October 25 | April 16 – April 30 |
| Toledo | 6b | April 20 | October 27 | April 20 – May 4 |
| Akron | 6b | April 24 | October 28 | April 24 – May 8 |
| Dayton | 6b | April 18 | October 25 | April 18 – May 2 |
| Parma | 6b | April 20 | November 3 | April 20 – May 4 |
| Canton | 6b | April 24 | October 26 | April 24 – May 8 |
Sweet Corn in Ohio: FAQ
When can I plant sweet corn in Ohio?
Across Ohio, the time to direct-sow sweet corn spans roughly April 8 in Cleveland to May 8 in Warren, each following that city's local frost dates.
Does the sweet corn planting date vary across Ohio?
Yes. Ohio publishes 187 cities with their own frost dates, so the right sweet corn planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does sweet corn take to grow in Ohio?
Sweet Corn takes about 60–90 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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