When to plant leek in Ohio
Ohio spans USDA zones 6a–7a, so the right time to plant leek shifts by weeks across the state. The window to transplant seedlings 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 | Transplant out |
|---|---|---|---|---|
| Columbus | 6b | April 20 | October 24 | March 23 – April 6 |
| Cleveland | 7a | April 8 | November 12 | March 11 – March 25 |
| Cincinnati | 6b | April 16 | October 25 | March 19 – April 2 |
| Toledo | 6b | April 20 | October 27 | March 23 – April 6 |
| Akron | 6b | April 24 | October 28 | March 27 – April 10 |
| Dayton | 6b | April 18 | October 25 | March 21 – April 4 |
| Parma | 6b | April 20 | November 3 | March 23 – April 6 |
| Canton | 6b | April 24 | October 26 | March 27 – April 10 |
Leek in Ohio: FAQ
When can I plant leek in Ohio?
Across Ohio, the time to transplant leek spans roughly March 11 in Cleveland to April 10 in Warren, each following that city's local frost dates.
Does the leek planting date vary across Ohio?
Yes. Ohio publishes 187 cities with their own frost dates, so the right leek 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 leek take to grow in Ohio?
Leek takes about 100–120 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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