When to plant scallion (green onion) in Ohio
Ohio spans USDA zones 6a–7a, so the right time to plant scallion (green onion) shifts by weeks across the state. The window to sow seed directly outdoors runs from about March 11 in Cleveland to April 10 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 | March 23 – May 4 |
| Cleveland | 7a | April 8 | November 12 | March 11 – April 22 |
| Cincinnati | 6b | April 16 | October 25 | March 19 – April 30 |
| Toledo | 6b | April 20 | October 27 | March 23 – May 4 |
| Akron | 6b | April 24 | October 28 | March 27 – May 8 |
| Dayton | 6b | April 18 | October 25 | March 21 – May 2 |
| Parma | 6b | April 20 | November 3 | March 23 – May 4 |
| Canton | 6b | April 24 | October 26 | March 27 – May 8 |
Scallion (Green Onion) in Ohio: FAQ
When can I plant scallion (green onion) in Ohio?
Across Ohio, the time to direct-sow scallion (green onion) spans roughly March 11 in Cleveland to April 10 in Warren, each following that city's local frost dates.
Does the scallion (green onion) planting date vary across Ohio?
Yes. Ohio publishes 187 cities with their own frost dates, so the right scallion (green onion) 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 scallion (green onion) take to grow in Ohio?
Scallion (Green Onion) takes about 60–80 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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