When to Plant Cowpeas in Zone 4
In USDA zone 4a, plant outdoors May 29 to August 17, and expect your first harvest around August 17. (4a shown here — see 4a and 4b dates separately below.)
Cowpeas planting calendar for USDA 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, needing roughly 128 frost-free days in zone 4a.
Cowpeas planting calendar for USDA 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, needing roughly 138 frost-free days in zone 4b.
Not sure whether you're in 4a or 4b? 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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