When to Plant Sweet Corn in Minnesota
In Minnesota, the time to sow sweet corn outside runs from Apr 30 – May 14 in Minneapolis to May 21 – Jun 4 in Duluth. In Minneapolis, it's Apr 30 – May 14. The average last spring frost differs by about 3 weeks across the state (Apr 23 in Minneapolis, May 14 in Duluth), so use the dates for the town nearest you.
Sow corn in blocks rather than single rows so it pollinates well. Wait for soil around 60°F.
- Sow outside: 1–3 weeks after the last frost.
Sweet Corn planting dates in Minnesota by city
| City | Zone | Sow outside |
|---|---|---|
| Andover | 4b | May 12 – May 26 |
| Apple Valley | 5a | May 9 – May 23 |
| Austin | 4b | May 7 – May 21 |
| Blaine | 5a | May 12 – May 26 |
| Bloomington | 5a | Apr 30 – May 14 |
| Brooklyn Center | 5a | May 7 – May 21 |
| Brooklyn Park | 5a | May 7 – May 21 |
| Burnsville | 5a | May 4 – May 18 |
| Chaska | 4b | May 12 – May 26 |
| Coon Rapids | 5a | May 12 – May 26 |
| Cottage Grove | 5a | Apr 30 – May 14 |
| Duluth | 4b | May 21 – Jun 4 |
| Eagan | 5a | Apr 30 – May 14 |
| Eden Prairie | 5a | Apr 30 – May 14 |
| Edina | 5a | Apr 30 – May 14 |
| Elk River | 4b | May 11 – May 25 |
| Fridley | 5a | May 7 – May 21 |
| Inver Grove Heights | 5a | May 1 – May 15 |
| Lakeville | 4b | May 4 – May 18 |
| Mankato | 5a | May 7 – May 21 |
| Maple Grove | 5a | May 7 – May 21 |
| Maplewood | 5a | Apr 30 – May 14 |
| Minneapolis | 5a | Apr 30 – May 14 |
| Minnetonka | 5a | May 6 – May 20 |
| Moorhead | 4a | May 12 – May 26 |
| Oakdale | 5a | May 3 – May 17 |
| Plymouth | 5a | May 6 – May 20 |
| Prior Lake | 4b | Apr 30 – May 14 |
| Ramsey | 4b | May 11 – May 25 |
| Richfield | 5a | Apr 30 – May 14 |
| Rochester | 4b | May 7 – May 21 |
| Rosemount | 5a | May 9 – May 23 |
| Roseville | 5a | May 5 – May 19 |
| Savage | 5a | Apr 30 – May 14 |
| Shakopee | 5a | Apr 30 – May 14 |
| Shoreview | 5a | Apr 30 – May 14 |
| St. Cloud | 4b | May 14 – May 28 |
| St. Louis Park | 5a | May 6 – May 20 |
| St. Paul | 5a | May 1 – May 15 |
| Woodbury | 5a | May 3 – May 17 |
Calculated from each town's average (50%) frost dates, from the nearest NOAA station (1991–2020). Typical dates for the 2027 planting season, based on NOAA's 1991–2020 averages. They are long-term odds, not a forecast: always check your local forecast before planting. Zones: 2023 USDA Plant Hardiness Zone Map (USDA-ARS and Oregon State University). Not the official map; see planthardiness.ars.usda.gov.
See all frost dates in Minnesota, or the general guide to when to plant sweet corn.
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