When to plant Broccoli and brussels sprouts in Idaho
In spring, from Mar 15 – Apr 15 in Lewiston to May 1 – June 15 in Garden City.
For a fall crop, from May 1 – June 15 in Rexburg to July 1 – Aug 1 in Rathdrum.
USDA gives brussels sprouts the same planting dates as broccoli.
Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Ammon | Apr 15 – June 1 | June 1 – 30 |
| Blackfoot | Apr 1 – May 1 | June 1 – 30 |
| Boise City | Mar 25 – Apr 20 | July 1 – Aug 1 |
| Burley | Apr 15 – June 1 | June 1 – 30 |
| Caldwell | Apr 1 – May 1 | June 15 – July 15 |
| Chubbuck | May 1 – June 15 | June 1 – 30 |
| Coeur d'Alene | Mar 25 – Apr 20 | July 1 – Aug 1 |
| Eagle | Apr 1 – May 1 | July 1 – Aug 1 |
| Garden City | May 1 – June 15 | June 15 – July 15 |
| Hayden | Mar 25 – Apr 20 | July 1 – Aug 1 |
| Idaho Falls | Apr 15 – June 1 | June 1 – 30 |
| Jerome | Apr 1 – May 1 | June 15 – July 15 |
| Kuna | Mar 25 – Apr 20 | July 1 – Aug 1 |
| Lewiston | Mar 15 – Apr 15 | July 1 – Aug 15 |
| Meridian | Mar 25 – Apr 20 | July 1 – Aug 1 |
| Middleton | Apr 1 – May 1 | June 15 – July 15 |
| Moscow | Apr 1 – May 1 | June 1 – 30 |
| Mountain Home | Apr 1 – May 1 | June 15 – July 15 |
| Nampa | Apr 1 – May 1 | June 15 – July 15 |
| Pocatello | Apr 1 – May 1 | June 15 – July 15 |
| Post Falls | Mar 25 – Apr 20 | July 1 – Aug 1 |
| Rathdrum | Mar 25 – Apr 20 | July 1 – Aug 1 |
| Rexburg | Apr 15 – June 1 | May 1 – June 15 |
| Sandpoint | Apr 15 – June 1 | June 1 – 30 |
| Star | Apr 1 – May 1 | June 15 – July 15 |
| Twin Falls | Apr 1 – May 1 | June 15 – July 15 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. The full USDA table for broccoli.
Updated