When to Plant Cowpeas in South Dakota
South Dakota spans USDA hardiness 4a to 5b (zones 4a to 5b on this page). Plant cowpeas by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 4a · Zone 4b · Zone 5a · Zone 5b
Cowpeas planting calendar for South Dakota, Zone 4a
Average last spring frost
May 15
Average first fall frost
September 20
Direct sow
May 29
Projected first harvest
Aug 17
Most cowpeas mature in about 75 to 80 days depending on the variety. Full zone 4 guide (both 4a and 4b) →
Cowpeas planting calendar for South Dakota, Zone 4b
Average last spring frost
May 10
Average first fall frost
September 25
Direct sow
May 24
Projected first harvest
Aug 12
Most cowpeas mature in about 75 to 80 days depending on the variety. Full zone 4 guide (both 4a and 4b) →
Cowpeas planting calendar for South Dakota, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
Direct sow
May 19
Projected first harvest
Aug 7
Most cowpeas mature in about 75 to 80 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Cowpeas planting calendar for South Dakota, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
Direct sow
May 14
Projected first harvest
Aug 2
Most cowpeas mature in about 75 to 80 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Not sure which half-zone you're in? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
2 varieties of cowpeas in the HomeSown library. Tap any for its full grow guide.
Common problems with cowpeas
What to watch for, with identification and treatment for each
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