When to Plant Brussels Sprouts in North Dakota

In a typical North Dakota location, start seeds indoors Mar 22 – Apr 5, then transplant outdoors Apr 19 – May 3. Across the state, the outdoor planting window starts as early as Apr 13 in Wahpeton and as late as Apr 30 in Beulah.

Method Start indoors, then transplant
Days to maturity 90–110 days

Long-season crop best timed to mature after a light fall frost for sweetest flavor; start indoors 5-7 weeks before last frost.

Brussels Sprouts Planting Dates by City

CityStart indoorsTransplant
FargoMar 17 – Mar 31Apr 14 – Apr 28
BismarckMar 22 – Apr 5Apr 19 – May 3
Grand ForksMar 22 – Apr 5Apr 19 – May 3
MinotMar 22 – Apr 5Apr 19 – May 3
West FargoMar 22 – Apr 5Apr 19 – May 3
WillistonApr 2 – Apr 16Apr 30 – May 14
DickinsonApr 1 – Apr 15Apr 29 – May 13
MandanMar 25 – Apr 8Apr 22 – May 6
JamestownMar 20 – Apr 3Apr 17 – May 1
WahpetonMar 16 – Mar 30Apr 13 – Apr 27
Devils LakeMar 18 – Apr 1Apr 15 – Apr 29
Watford CityMar 21 – Apr 4Apr 18 – May 2
Valley CityMar 25 – Apr 8Apr 22 – May 6
Minot Air Force BaseMar 23 – Apr 6Apr 20 – May 4
GraftonMar 16 – Mar 30Apr 13 – Apr 27
LincolnMar 26 – Apr 9Apr 23 – May 7
BeulahApr 2 – Apr 16Apr 30 – May 14
RugbyMar 29 – Apr 12Apr 26 – May 10
StanleyMar 29 – Apr 12Apr 26 – May 10
HoraceMar 16 – Mar 30Apr 13 – Apr 27

Showing the 20 most populous of 20 North Dakota cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all North Dakota cities.

Frequently Asked Questions

When should I plant Brussels sprouts in North Dakota?

In a typical North Dakota location, start seeds indoors Mar 22 – Apr 5, then transplant outdoors Apr 19 – May 3. Across the state, the outdoor planting window starts as early as Apr 13 in Wahpeton and as late as Apr 30 in Beulah.

When is the last frost in North Dakota?

The average last spring frost in North Dakota ranges from May 4 in Wahpeton to May 21 in Beulah, based on NOAA 1991–2020 climate normals.

How long do Brussels sprouts take to grow?

Brussels Sprouts typically take 90–110 days from planting to harvest. Long-season crop best timed to mature after a light fall frost for sweetest flavor; start indoors 5-7 weeks before last frost.

Other Crops in North Dakota

When to plant Brussels sprouts in other states

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