Based on 2,232 research-grade iNaturalist flowering observations in Michigan, Large White Trillium blooms mainly from May to May, peaking in May. It ranks #1 among wildflowers recorded in the state in our data.
Trillium grandiflorum
Large White Trillium in Michigan by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also in bloom in Michigan in May
Northern Starflower
Red Columbine
Marsh Marigold
Pink Lady's Slipper
Fringed Polygala
Wild Geranium
Dutchman's breeches
Trailing Arbutus
Places to look in Michigan
Wilderness AreaIsle Royale National Park
Botanical GardenBelle Isle Park
Botanical GardenFrederik Meijer Gardens & Sculpture Park
Botanical GardenLeila Arboretum
Botanical GardenNichols Arboretum
State ParkGrand Mere State Park
FAQ
When does Large White Trillium bloom in Michigan?
Mainly May–May, with the most records in May.
How common is Large White Trillium in Michigan?
It ranks #1 by number of iNaturalist flowering observations among wildflowers in Michigan (2,232 records in our sample).