Illinois · Garden vegetables
Typically mid-September to late November, with peak early October through late October.
Hatched chalk = early and late shoulders; solid = peak.
Southern Illinois runs about two weeks ahead of Chicagoland.
From mid-September — first pickings, lighter supply, best prices come later.
early October through late October — full stalls, full flavor. This is the stretch to plan around.
Through late November — quantity for preserving, and the stalls start dealing.
about 11 weeks end to end, shoulders included.
Brussels Sprout peak moves across the map. After this window, it lands next in:
In Illinois, the brussels sprout season typically runs mid-September to late November, with peak availability early October through late October. Exact weeks shift a little with each year's weather.
Rarely u-pick — look for whole stalks at fall farmers markets and farm stands instead. The best market weeks are early October through late October.
about 11 weeks end to end — mid-September to late November. The early and late shoulders are real but lighter; the solid stretch of chalk on the band is the sure bet.