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Showy Trillium
Trillium grandiflorum

The largest trillium in Minnesota, Showy Trillium takes time to mature and produce flowers but is long-lived. Its white flowers appear in early spring and turn pink towards the end of its bloom time.

USDA symbol: TRGR4

General Information

Plant TypeForb
Height1 to 2 feet
Light ExposureShade
Soil MoistureDry, Medium
Bloom ColorWhite
Showy Trillium (Showy Trillium<div><em class="small">Trillium grandiflorum</em></div>)
Photo credit: United States Department of Agriculture (Click to enlarge)


Flooding / Inundation ToleranceLow
General Resilience2
Salt ToleranceMedium

Pollinator Value: High

Bloom MonthsMay to June
Pollinator BenefitInsect Pollinated, Provides Nectar, Supports Generalists

Project Planning

Project TypeRestoration
Coefficient of Conservatism9
Herbivore SensitivityHigh
Rate of SpreadSlow
Soil StabilizationShallow
Vegetative ReproductionClonal


CountyAitkin, Anoka, Becker, Benton, Carlton, Cass, Chisago, Clearwater, Cook, Crow Wing, Dakota, Douglas, Goodhue, Hennepin, Itasca, Kandiyohi, Mille Lacs, Morrison, Mower, Nicollet, Pine, Redwood, St. Louis, Stearns, Todd, Wabasha, Wadena, Washington, Winona
EcoregionDriftless Area, Lake Agassiz Plain, North Central Hardwood Forests, Northern Lakes and Forests, Northern Minnesota Wetlands, Western Cornbelt Plains
Approximate Eco ProvinceEastern Broadleaf Forest, Laurentian Mixed Forest, Prairie Parkland, Tallgrass Aspen Parklands