When to plant fennel (bulb) in Ohio
Ohio spans USDA zones 6a–7a, so the right time to plant fennel (bulb) shifts by weeks across the state. The window to transplant seedlings outdoors runs from about March 25 in Cleveland to April 24 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 | April 6 – April 20 |
| Cleveland | 7a | April 8 | November 12 | March 25 – April 8 |
| Cincinnati | 6b | April 16 | October 25 | April 2 – April 16 |
| Toledo | 6b | April 20 | October 27 | April 6 – April 20 |
| Akron | 6b | April 24 | October 28 | April 10 – April 24 |
| Dayton | 6b | April 18 | October 25 | April 4 – April 18 |
| Parma | 6b | April 20 | November 3 | April 6 – April 20 |
| Canton | 6b | April 24 | October 26 | April 10 – April 24 |
Fennel (Bulb) in Ohio: FAQ
When can I plant fennel (bulb) in Ohio?
Across Ohio, the time to transplant fennel (bulb) spans roughly March 25 in Cleveland to April 24 in Warren, each following that city's local frost dates.
Does the fennel (bulb) planting date vary across Ohio?
Yes. Ohio publishes 187 cities with their own frost dates, so the right fennel (bulb) 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 fennel (bulb) take to grow in Ohio?
Fennel (Bulb) takes about 65–90 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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