Illinois · Garden vegetables

Lettuce season in Illinois

Typically early May to late June, and again early September to late October, with peak mid-May through mid-June.

Hatched chalk = early and late shoulders; solid = peak.

Southern Illinois runs about two weeks ahead.

At a glance

Early

From early May, and again early September — first pickings, lighter supply, best prices come later.

Peak

mid-May through mid-June; again mid-September through mid-October — full stalls, full flavor. This is the stretch to plan around.

Late

Through late October — quantity for preserving, and the stalls start dealing.

Season length

about 17 weeks end to end, shoulders included.

Lettuce

Look: Heads look dense for their size with perky, unblemished outer leaves and no browning at the cut end.
Feel: Leaves should feel crisp, not limp — butterheads give slightly while crispheads feel tight and heavy.
Smell: Fresh lettuce smells clean and mildly green; any sour or sulfurous whiff means it is breaking down.
Tip: Shop early in the morning — lettuce cut before the heat of the day stays crisp far longer.
Keeps: Refrigerate unwashed in a bag with a paper towel; most heads keep a week or more.

Chasing the season?

Lettuce peak moves across the map. After this window, it lands next in:

The whole national sweep · everything in season in Illinois

Frequently asked questions

When is lettuce season in Illinois?

In Illinois, the lettuce season typically runs early May to late June, and again early September to late October, with peak availability mid-May through mid-June. Exact weeks shift a little with each year's weather.

Can I pick my own lettuce in Illinois?

Rarely a u-pick crop — buy heads from market growers who cut them that morning. The best market weeks are mid-May through mid-June.

How long does lettuce season last in Illinois?

about 17 weeks end to end — early May to late June, and again early September to late October. The early and late shoulders are real but lighter; the solid stretch of chalk on the band is the sure bet.