In Iowa, the lettuce season typically runs early May to late June, and again early September to mid-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 Iowa?
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 Iowa?
about 15 weeks end to end — early May to late June, and again early September to mid-October. The early and late shoulders are real but lighter; the solid stretch of chalk on the band is the sure bet.