Kansas · zones 5b–7a
When to plant zucchini in Kansas.
Sow between Apr 21 to Aug 4 in a typical year, keyed to Kansas's median last frost around Apr 14. A second, fall sowing fits Jul 8 to Jul 27. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Zucchini dates for a typical Kansas season.
Direct sow
Apr 21 to Aug 4
Keyed to the ~Apr 14 last frost. Sow 1" deep, 24" apart.
Fall round
Jul 8 to Jul 27
Counted back from the ~Oct 22 first frost.
Harvest
~50 days later
~8 lb per plant over ~5 weeks.
Kansas spans more than one climate: Zone 6 is the most common zone, but the state runs 5b to 7a. 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.