South Dakota · zones 4a–5a
When to plant bell peppers in South Dakota.
Sow or transplant between May 25 to Jul 16 in a typical year, keyed to South Dakota's median last frost around May 9. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Bell Peppers dates for a typical South Dakota season.
1 · Start indoors
Apr 13 to Jun 4
About 6 weeks before set-out. Warm spot, real light.
2 · Set out
May 25 to Jul 16
Keyed to the ~May 9 last frost. Sow 0.25" deep, 18" apart.
Harvest
~70 days later
~4 lb per plant over ~8 weeks.
South Dakota spans more than one climate: Zone 4 is the most common zone, but the state runs 4a to 5a. That's why the planner works from your ZIP code's frost dates, not your zone — mountain and coastal gardens in the same state can be three weeks apart.