When to Plant Sweet Corn in Vermont
In Vermont, the time to sow sweet corn outside runs from May 6 – May 20 in Burlington to May 23 – Jun 6 in Barre. In Burlington, it's May 6 – May 20. The average last spring frost differs by about 2 weeks across the state (Apr 29 in Burlington, May 16 in Barre), 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 Vermont by city
| City | Zone | Sow outside |
|---|---|---|
| Barre | 5a | May 23 – Jun 6 |
| Burlington | 5b | May 6 – May 20 |
| Essex Junction | 5a | May 9 – May 23 |
| Montpelier | 5a | May 12 – May 26 |
| Rutland | 5a | May 22 – Jun 5 |
| South Burlington | 5a | May 6 – May 20 |
| St. Albans | 5a | May 8 – May 22 |
| Winooski | 5a | May 6 – May 20 |
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 Vermont, or the general guide to when to plant sweet corn.
Getting beds ready? Work out how much raised bed soil, compost or mulch you need with our sister site, Yard Coverage.