DibbleWhen to plant corn in Zone 7
In Zone 7, the last spring frost usually passes around April 10 and the first fall frost arrives around October 29, leaving about 202 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Long season. Great for succession planting and fall crops.
Planting windows for corn in Zone 7
| Task | Window |
|---|---|
| Direct sow | Apr 17 to May 1 |
| Estimated harvest | Jul 1 to Jul 11 |
The harvest estimate counts 75 days to maturity, then a picking window of about 10 days. These windows use typical frost dates for Zone 7; Dibble pins them to your exact ZIP code.
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Sweet Corn in a Zone 7 season
Zone 7 gives about 202 frost-free days. Sweet Corn needs roughly 75 days from sowing. That leaves about 127 days of slack, so there is room for a late start or a second planting.
How to grow corn
Sow corn a week after last frost in warm soil. Plant in blocks of several short rows, not one long row, for good pollination.
Companion plants
Good neighbors for Sweet Corn:
Better kept apart:
Sweet Corn in other zones
Not in Zone 7? Pick your zone for the same dated windows.
Keep exploring
Sweet Corn: the full growing guide · The Zone 7 planting calendar · Every crop and zone
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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.