American Mannagrass
Glyceria grandis

American mannagrass is a tall wetland grass of marshes, ditches, and pond margins, with airy seed panicles; its seeds and foliage are important waterfowl and wildlife food.
- Family
- Poaceae
- Type
- grass
- Lifespan
- perennial
- Height
- 3–5 ft
- Spacing
- 1–2 ft apart
- Light
- sun
- Soil moisture
- wet
- Soil pH
- neutral, acidic
- Bloom
- May, June, July, August
- Bloom colors
- purple
- Wildlife value
- songbirds, larval host, mammals
- Landscape uses
- specimen, rain garden, erosion control, naturalizing
- Native states
- AK, AZ, CA, CO, CT, DE, IA, ID, IL, IN, MA, MD, ME, MI, MN, MS, MT, ND, NE, NH, NJ, NM, NV, NY, OH, OR, PA, RI, SD, UT, VA, VT, WA, WI, WV, WY