FrostCal

When to Plant Broccoli in South Dakota

In a typical South Dakota location, start seeds indoors Mar 18 – Apr 1, then transplant outdoors Apr 15 – Apr 22. Across the state, the outdoor planting window starts as early as Apr 5 in Tea and as late as Apr 21 in Ellsworth Air Force Base. For a fall crop, plant around Aug 1 – Aug 8.

Method Start indoors, then transplant
Days to maturity 55–80 days

Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).

Broccoli Planting Dates by City

CityStart indoorsTransplantFall planting
Sioux FallsMar 13 – Mar 27Apr 10 – Apr 17Aug 4 – Aug 11
Rapid CityMar 15 – Mar 29Apr 12 – Apr 19Aug 6 – Aug 13
AberdeenMar 20 – Apr 3Apr 17 – Apr 24Jul 28 – Aug 4
BrookingsMar 18 – Apr 1Apr 15 – Apr 22Jul 30 – Aug 6
WatertownMar 19 – Apr 2Apr 16 – Apr 23Jul 29 – Aug 5
MitchellMar 14 – Mar 28Apr 11 – Apr 18Aug 4 – Aug 11
YanktonMar 9 – Mar 23Apr 6 – Apr 13Aug 9 – Aug 16
PierreMar 18 – Apr 1Apr 15 – Apr 22Aug 1 – Aug 8
HuronMar 18 – Apr 1Apr 15 – Apr 22Jul 31 – Aug 7
SpearfishMar 24 – Apr 7Apr 21 – Apr 28Jul 31 – Aug 7
VermillionMar 15 – Mar 29Apr 12 – Apr 19Aug 1 – Aug 8
BrandonMar 13 – Mar 27Apr 10 – Apr 17Aug 4 – Aug 11
Box ElderMar 24 – Apr 7Apr 21 – Apr 28Jul 30 – Aug 6
Rapid ValleyMar 15 – Mar 29Apr 12 – Apr 19Aug 6 – Aug 13
Ellsworth Air Force BaseMar 24 – Apr 7Apr 21 – Apr 28Jul 30 – Aug 6
MadisonMar 17 – Mar 31Apr 14 – Apr 21Jul 29 – Aug 5
SturgisMar 20 – Apr 3Apr 17 – Apr 24Aug 1 – Aug 8
Belle FourcheMar 22 – Apr 5Apr 19 – Apr 26Jul 29 – Aug 5
HarrisburgMar 14 – Mar 28Apr 11 – Apr 18Jul 31 – Aug 7
TeaMar 8 – Mar 22Apr 5 – Apr 12Aug 11 – Aug 18

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

Frequently Asked Questions

When should I plant broccoli in South Dakota?

In a typical South Dakota location, start seeds indoors Mar 18 – Apr 1, then transplant outdoors Apr 15 – Apr 22. Across the state, the outdoor planting window starts as early as Apr 5 in Tea and as late as Apr 21 in Ellsworth Air Force Base. For a fall crop, plant around Aug 1 – Aug 8.

When is the last frost in South Dakota?

The average last spring frost in South Dakota ranges from April 26 in Tea to May 12 in Ellsworth Air Force Base, based on NOAA 1991–2020 climate normals.

How long do broccoli take to grow?

Broccoli typically take 55–80 days from planting to harvest. Start indoors 5-7 weeks before last frost; transplant out 2-3 weeks before last frost (hardens off to light frost).

Other Crops in South Dakota

When to plant broccoli in other states

Related Guides