A bloom calendar for Michigan built from 43,824 research-grade iNaturalist observations of plants in flower. May is the busiest bloom month. Pick a month to see what's flowering, or open a species for its state-by-state timing.
By month
Michigan wildflower calendar (top 40)
Fewer More observations (relative to each row's peak month)
Activity by month (all species)
Most-photographed wildflowers in Michigan
Large White Trillium
Bloodroot
Pink Lady's Slipper
Red Columbine
Dutchman's breeches
Marsh Marigold
Northern Starflower
Yellow Trout Lily
Large-Leaved Aster
Yellow Lady's Slipper
Fringed Polygala
Common Jewelweed
Virginia Springbeauty
Trailing Arbutus
fen grass of Parnassus
Dame's Rocket
