When to plant Leeks in Idaho
In spring, from Mar 1 – Apr 1 in Lewiston to May 1 – 20 in Garden City.
In fall: USDA's 1967 table lists leeks 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 15 – May 15 |
| Blackfoot | Apr 1 – May 1 |
| Boise City | Mar 15 – Apr 15 |
| Burley | Apr 15 – May 15 |
| Caldwell | Apr 1 – May 1 |
| Chubbuck | May 1 – 20 |
| Coeur d'Alene | Mar 15 – Apr 15 |
| Eagle | Apr 1 – May 1 |
| Garden City | May 1 – 20 |
| Hayden | Mar 15 – Apr 15 |
| Idaho Falls | Apr 15 – May 15 |
| Jerome | Apr 1 – May 1 |
| Kuna | Mar 15 – Apr 15 |
| Lewiston | Mar 1 – Apr 1 |
| Meridian | Mar 15 – Apr 15 |
| Middleton | Apr 1 – May 1 |
| Moscow | Apr 1 – May 1 |
| Mountain Home | Apr 1 – May 1 |
| Nampa | Apr 1 – May 1 |
| Pocatello | Apr 1 – May 1 |
| Post Falls | Mar 15 – Apr 15 |
| Rathdrum | Mar 15 – Apr 15 |
| Rexburg | Apr 15 – May 15 |
| Sandpoint | Apr 15 – May 15 |
| Star | Apr 1 – May 1 |
| Twin Falls | Apr 1 – May 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 leeks.