When to plant lemon in New Hampshire
New Hampshire spans USDA zones 5a–6a, so the right time to plant lemon shifts by weeks across the state. The window to transplant seedlings outdoors runs from about May 6 in Nashua to May 21 in Keene — below are local dates for 15 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Manchester | 6a | April 30 | October 11 | May 7 – May 14 |
| Nashua | 6a | April 29 | October 8 | May 6 – May 13 |
| Concord | 5b | May 8 | October 3 | May 15 – May 22 |
| Dover | 6a | May 3 | October 10 | May 10 – May 17 |
| Rochester | 6a | April 30 | October 9 | May 7 – May 14 |
| Keene | 5b | May 14 | October 1 | May 21 – May 28 |
| Portsmouth | 6a | May 4 | October 8 | May 11 – May 18 |
| Derry | 6a | April 30 | October 11 | May 7 – May 14 |
Lemon in New Hampshire: FAQ
When can I plant lemon in New Hampshire?
Across New Hampshire, the time to transplant lemon spans roughly May 6 in Nashua to May 21 in Keene, each following that city's local frost dates.
Does the lemon planting date vary across New Hampshire?
Yes. New Hampshire publishes 15 cities with their own frost dates, so the right lemon planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
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