Eastern Gama Grass
Tripsacum dactyloides
Last reviewed: June 2026
Tripsacum dactyloides (Eastern Gama Grass) is a tall native prairie grass found across much of eastern and central North America. This robust perennial blooms June through August and provides habitat for bees and beetles.
The USDA PLANTS Database (opens in new tab) does not flag Eastern Gama Grass as toxic to livestock.
Light
full sun
Water
medium
Size
36"–96" H × 24"–48" W
Bloom
Jun, Jul, Aug
Native to
AL, AR, CT, DE and 26 more states
Pollinators
bees, beetles
Browse plants for this ecoregion
Eastern gama grass is a tall, robust native prairie grass that forms dense clumps with broad, arching leaves. It produces distinctive finger-like seed heads in summer and turns golden brown in fall. This warm-season grass is drought tolerant once established and provides excellent erosion control.
Growing Eastern Gama Grass
Grow Eastern Gama Grass in full sun and medium water. Mature plants reach 36 to 96 inches tall and spread 24 to 48 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Eastern Gama Grass 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.
- Height up to 8 feet may violate height restrictions
- Can appear wild and unkempt to traditional landscaping preferences
- Large spread may encroach on neighboring properties
Wildlife value
The seed heads attract bees and beetles during blooming season. Birds feed on the seeds in fall and winter, while the dense clumps provide nesting cover for ground-dwelling wildlife.
Common questions
- Where does Eastern Gama Grass naturally grow?
- Eastern Gama Grass is native to 35 states across the eastern and central United States, from Florida and Texas north to Michigan and New York, including most of the Great Plains and southeastern regions.
- When does Tripsacum dactyloides bloom?
- Eastern Gama Grass produces its flowering spikes during the summer months of June, July, and August.
- What pollinators visit Eastern Gama Grass?
- This native grass attracts bees and beetles, though as a wind-pollinated species, it relies primarily on wind rather than animal pollinators for reproduction.
- How tall does Eastern Gama Grass grow?
- Eastern Gama Grass typically reaches 3 to 8 feet in height, making it one of the taller native prairie grasses. It forms dense clumps and can spread by rhizomes.
- Is Eastern Gama Grass toxic to livestock?
- The USDA PLANTS Database does not flag Eastern Gama Grass as toxic to livestock.
- Is Eastern Gama Grass HOA-friendly?
- Eastern Gama Grass 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 Eastern Gama Grass? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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