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Illinoiswildflowers

When do wildflowers bloom in Illinois?

Wildflowers usually bloom from April to August.

Checked Sep 30.

Each place's usual timing in Illinois

In each source's own words: a usual peak where one is named, otherwise the place's season
  • Each place's usual timing from its own source: a peak only where the source names one (not a forecast)

Places by state

Illinois

Official reports

Dated and linked

How do you track wildflowers? Each place moves through 5 stages: Not yet, Early, Good, Peak and Fading. Every stage we show comes from a dated report with its source, and every forecast lists its sources.