Based on 1,161 research-grade iNaturalist flowering observations in Massachusetts, Red Trillium blooms mainly from April to May, peaking in April. It ranks #4 among wildflowers recorded in the state in our data.
Trillium erectum
Red Trillium in Massachusetts 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 Massachusetts in April
Lesser Celandine
Bloodroot
Trailing Arbutus
Azure Bluet
Lesser Periwinkle
Norway maple
Wood Anemone
Ground-Ivy
Places to look in Massachusetts
Botanical GardenArnold Arboretum
Botanical GardenBoston Public Garden
Botanical GardenBerkshire Botanical Garden
State ParkHalibut Point State Park
State ParkHammond Pond Reservation
State ParkTolland State Forest
FAQ
When does Red Trillium bloom in Massachusetts?
Mainly April–May, with the most records in April.
How common is Red Trillium in Massachusetts?
It ranks #4 by number of iNaturalist flowering observations among wildflowers in Massachusetts (1,161 records in our sample).