When to plant Winter squash in New Hampshire
In fall, June 1 – 15.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Claremont | — | June 1 – 15 |
| Concord | — | June 1 – 15 |
| Dover | — | June 1 – July 1 |
| Keene | — | June 1 – 15 |
| Laconia | — | June 1 – July 1 |
| Lebanon | — | June 1 – July 1 |
| Manchester | — | June 1 – July 1 |
| Nashua | — | June 1 – July 1 |
| Portsmouth | — | June 1 – July 1 |
| Rochester | — | June 1 – July 1 |
| Somersworth | — | June 1 – July 1 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for winter squash.