When to plant Onion sets in Nevada
In spring, from Jan 1 – 15 in Boulder City to May 1 – 30 in Elko.
In fall, from Oct 1 – Dec 1 in Mesquite to Nov 1 – Dec 31 in North Las Vegas.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Boulder City | Jan 1 – 15 | Nov 1 – Dec 31Soon |
| Carson | Mar 10 – Apr 10 | Spring-planted |
| Elko | May 1 – 30 | Spring-planted |
| Fernley | Mar 10 – Apr 1 | Spring-planted |
| Henderson | Jan 1 – 15 | Nov 1 – Dec 31Soon |
| Las Vegas | Jan 1 – 15 | Nov 1 – Dec 31Soon |
| Mesquite | Feb 1 – Mar 20 | Oct 1 – Dec 1Now |
| North Las Vegas | Jan 1 – 15 | Nov 1 – Dec 31Soon |
| Reno | Mar 10 – Apr 10 | Not listed |
| Sparks | Mar 10 – Apr 10 | Spring-planted |
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 onion sets.