When to plant Winter squash in Idaho
In fall, from May 20 – June 10 in Rexburg to June 10 – July 10 in Lewiston.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Ammon | — | June 1 – 15 |
| Blackfoot | — | June 1 – 15 |
| Boise City | — | June 1 – July 1 |
| Burley | — | June 1 – 15 |
| Caldwell | — | June 1 – July 1 |
| Chubbuck | — | June 1 – 15 |
| Coeur d'Alene | — | June 1 – July 1 |
| Eagle | — | June 1 – July 1 |
| Garden City | — | June 1 – July 1 |
| Hayden | — | June 1 – July 1 |
| Idaho Falls | — | June 1 – 15 |
| Jerome | — | June 1 – July 1 |
| Kuna | — | June 1 – July 1 |
| Lewiston | — | June 10 – July 10 |
| Meridian | — | June 1 – July 1 |
| Middleton | — | June 1 – July 1 |
| Moscow | — | June 1 – 15 |
| Mountain Home | — | June 1 – July 1 |
| Nampa | — | June 1 – July 1 |
| Pocatello | — | June 1 – July 1 |
| Post Falls | — | June 1 – July 1 |
| Rathdrum | — | June 1 – July 1 |
| Rexburg | — | May 20 – June 10 |
| Sandpoint | — | June 1 – 15 |
| Star | — | June 1 – July 1 |
| Twin Falls | — | 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 outside the table. The full USDA table for winter squash.