When to plant Broccoli in North Dakota

In spring, from Apr 1 – May 1 in Fargo to May 1 – June 15 in Williston.

In fall, from May 1 – June 15 in Dickinson to June 1 – 30 in West Fargo.

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.

Broccoli planting dates by place in North Dakota
PlaceSpringFall
BismarckApr 15 – June 1June 1 – 30
DickinsonMay 1 – June 15May 1 – June 15
FargoApr 1 – May 1June 1 – 30
Grand ForksApr 15 – June 1June 1 – 30
JamestownApr 15 – June 1June 1 – 30
MandanApr 15 – June 1June 1 – 30
MinotApr 15 – June 1June 1 – 30
West FargoApr 1 – May 1June 1 – 30
WillistonMay 1 – June 15May 1 – June 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 broccoli.