When to plant Potatoes in North Dakota

In spring, from Mar 20 – May 10 in Fargo to Apr 15 – June 15 in Williston.

In fall, May 1 – June 15.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Potatoes planting dates by place in North Dakota
PlaceSpringFall
BismarckApr 1 – June 1May 1 – June 15
DickinsonApr 15 – June 15May 1 – June 15
FargoMar 20 – May 10May 1 – June 15
Grand ForksApr 1 – June 1May 1 – June 15
JamestownApr 1 – June 1May 1 – June 15
MandanApr 1 – June 1May 1 – June 15
MinotApr 1 – June 1May 1 – June 15
West FargoMar 20 – May 10May 1 – June 15
WillistonApr 15 – 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 potatoes.