Large White Trillium
Trillium grandiflorum
Last reviewed: June 2026
Trillium grandiflorum is a spring wildflower native to eastern North America, blooming May through June with distinctive three-petaled white flowers. This woodland perennial thrives in shaded areas from Maine to Georgia.
Light
part shade
Water
medium
Size
8"–16" H × 8"–16" W
Bloom
May, Jun
Native to
AL, CT, DE, GA and 22 more states
Pollinators
bees, beetles
Large white trillium produces distinctive three-petaled white flowers in late spring, creating an elegant woodland appearance. This native wildflower grows in neat clumps with characteristic three-leaf whorls and prefers shaded areas with consistent moisture.
Growing Large White Trillium
Grow Large White Trillium in part shade and medium water. Mature plants reach 8 to 16 inches tall and spread 8 to 16 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Large White Trillium takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Completely disappears by midsummer leaving bare spots
- Woodland wildflower appearance may seem too informal
- Very slow to establish and spread
Wildlife value
The flowers attract native bees and beetles during the May-June bloom period. Seeds are dispersed by ants, helping to establish natural woodland colonies.
Common questions
- When does Large White Trillium bloom?
- Trillium grandiflorum typically blooms from May through June, producing large white three-petaled flowers that may fade to pink with age.
- What pollinators visit Large White Trillium?
- Trillium grandiflorum is primarily pollinated by bees and beetles that are attracted to its large white flowers in spring woodland settings.
- Where is Large White Trillium native?
- This species is native across much of eastern North America, from Maine south to Georgia and west to Minnesota and Iowa, typically found in rich deciduous forests.
- What growing conditions does Large White Trillium prefer?
- Trillium grandiflorum grows best in partial to full shade with consistently moist, well-drained soil rich in organic matter, mimicking its natural woodland habitat.
- Is Large White Trillium HOA-friendly?
- Large White Trillium takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Large White Trillium? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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