Typically mid-July to mid-September, with peak
early August through late August.
In season now
now
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Hatched chalk = early and late shoulders; solid = peak.
Door County orchards and the central cranberry marshes each run their own famous calendars.
At a glance
Early
From mid-July —
first pickings, lighter supply, best prices come later.
Peak
early August through late August — full stalls,
full flavor. This is the stretch to plan around.
Late
Through mid-September — quantity for
preserving, and the stalls start dealing.
Season length
about 9 weeks end to end, shoulders included.
U-pick sweet corn in Wisconsin
Some farms open rows for picking — snap ears down with a quick twist and go early while it is cool. The picking window tracks the band above: early
trips get clean fields, peak (early August through late August) is the sure bet,
late season is for quantity.
Farm-to-farm variation is real — up to two weeks either side of
the typical window. Plan the trip,
then call the farm before you drive.
Sweet corn
Look
Husks are tight and grass-green with silks that are brown and dry at the tip, never black and slimy.
Feel
The ear feels plump and filled out to the tip, and a kernel pressed through the husk spurts milky juice.
Smell
Fresh ears smell green and faintly sweet; a sour or fermented whiff means they have sat too long.
Tip
Buy corn picked that same morning and keep it shaded — sweetness slips away by the hour in warm sun.
Keeps
Refrigerate in the husk and eat within a day or two; the sugars fade fast at room temperature.
Chasing the season?
Sweet Corn peak moves across the map.
After this window, it lands next in:
In Wisconsin, the sweet corn season typically runs mid-July to mid-September, with peak availability early August through late August. Exact weeks shift a little with each year's weather.
When should I go u-pick sweet corn in Wisconsin?
Aim for peak: early August through late August. An early trip around mid-July gets first choice of clean fields; a late one is for stock-the-freezer quantity. Any single farm can run up to two weeks either side of the chart — call before you drive.
How long does sweet corn season last in Wisconsin?
about 9 weeks end to end — mid-July to mid-September. The early and late shoulders are real but lighter; the solid stretch of chalk on the band is the sure bet.