When to plant Garlic in Idaho
In spring, from Feb 20 – Mar 20 in Lewiston to Apr 15 – May 15 in Garden City.
In fall: USDA's 1967 table lists garlic as generally spring-planted in every place here. Newer advice from your state's extension service may differ.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring |
|---|---|
| Ammon | Apr 1 – May 1 |
| Blackfoot | Mar 15 – Apr 15 |
| Boise City | Mar 10 – Apr 1 |
| Burley | Apr 1 – May 1 |
| Caldwell | Mar 15 – Apr 15 |
| Chubbuck | Apr 15 – May 15 |
| Coeur d'Alene | Mar 10 – Apr 1 |
| Eagle | Mar 15 – Apr 15 |
| Garden City | Apr 15 – May 15 |
| Hayden | Mar 10 – Apr 1 |
| Idaho Falls | Apr 1 – May 1 |
| Jerome | Mar 15 – Apr 15 |
| Kuna | Mar 10 – Apr 1 |
| Lewiston | Feb 20 – Mar 20 |
| Meridian | Mar 10 – Apr 1 |
| Middleton | Mar 15 – Apr 15 |
| Moscow | Mar 15 – Apr 15 |
| Mountain Home | Mar 15 – Apr 15 |
| Nampa | Mar 15 – Apr 15 |
| Pocatello | Mar 15 – Apr 15 |
| Post Falls | Mar 10 – Apr 1 |
| Rathdrum | Mar 10 – Apr 1 |
| Rexburg | Apr 1 – May 1 |
| Sandpoint | Apr 1 – May 1 |
| Star | Mar 15 – Apr 15 |
| Twin Falls | Mar 15 – Apr 15 |
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 garlic.