When to plant Turnips in South Dakota

In spring, from Mar 20 – May 1 in Brandon to Apr 1 – June 1 in Watertown.

In fall, from June 1 – Aug 1 in Aberdeen to July 1 – Aug 1 in Yankton.

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

Turnips planting dates by place in South Dakota
PlaceSpringFall
AberdeenApr 1 – June 1June 1 – Aug 1
Box ElderApr 1 – June 1June 1 – Aug 1
BrandonMar 20 – May 1July 1 – Aug 1
BrookingsApr 1 – June 1June 1 – Aug 1
HarrisburgMar 20 – May 1June 1 – Aug 1
HuronApr 1 – June 1June 1 – Aug 1
MitchellMar 20 – May 1July 1 – Aug 1
PierreApr 1 – June 1June 1 – Aug 1
Rapid CityMar 20 – May 1July 1 – Aug 1
Sioux FallsMar 20 – May 1July 1 – Aug 1
SpearfishApr 1 – June 1June 1 – Aug 1
VermillionMar 20 – May 1June 1 – Aug 1
WatertownApr 1 – June 1June 1 – Aug 1
YanktonMar 20 – May 1July 1 – Aug 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 turnips.