When to plant sweet corn in Kansas
Kansas spans USDA zones 6a–7a, so the right time to plant sweet corn shifts by weeks across the state. The window to sow seed directly outdoors runs from about April 4 in Kansas City to April 28 in Garden City — below are local dates for 35 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Wichita | 7a | April 11 | October 29 | April 11 – April 25 |
| Overland Park | 6b | April 10 | October 29 | April 10 – April 24 |
| Kansas City | 6b | April 4 | November 2 | April 4 – April 18 |
| Olathe | 6b | April 10 | October 29 | April 10 – April 24 |
| Topeka | 6b | April 16 | October 22 | April 16 – April 30 |
| Lawrence | 6b | April 12 | October 28 | April 12 – April 26 |
| Shawnee | 6b | April 16 | October 22 | April 16 – April 30 |
| Lenexa | 6b | April 10 | October 29 | April 10 – April 24 |
Sweet Corn in Kansas: FAQ
When can I plant sweet corn in Kansas?
Across Kansas, the time to direct-sow sweet corn spans roughly April 4 in Kansas City to April 28 in Garden City, each following that city's local frost dates.
Does the sweet corn planting date vary across Kansas?
Yes. Kansas publishes 35 cities with their own frost dates, so the right sweet corn planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does sweet corn take to grow in Kansas?
Sweet Corn takes about 60–90 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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