Illustration
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
- Midewin Prairie: Prairie clovers and compass plant in the seed beds (beds E3 and E10)
late June and July
- Midewin Prairie: Prairie dock in the seed beds (bed E1)
late July and August
- Each place's usual timing from its own source: a peak only where the source names one (not a forecast)
Places by state
Illinois
- Midewin PrairieStarts in ~8 months
Usually April and August
Official reports
Dated and linked
- Sep 30Park ServiceSeed-production beds of native prairie plants: when pale purple coneflower, prairie clovers, compass plant and prairie dock flower; stay on mowed paths; the South Patrol Road restorationSource (opens USDA Forest Service, Midewin National Tallgrass Prairie: Self-Guided Tour of the River Road Seedbeds (PDF) in a new tab)
- Sep 30Park ServiceNearly 9,000 acres open, 33 miles of trail, trails open 4 a.m. to 10 p.m.Source (opens USDA Forest Service, Midewin National Tallgrass Prairie: Recreation in a new tab)
- Sep 30Park ServiceWelcome Center hours, no fee, restrooms and water, April-October programs, the Supervisor's Office seedbeds, bison viewing, positionSource (opens USDA Forest Service, Midewin National Tallgrass Prairie: Welcome Center in a new tab)
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.