Long Mannagrass
Glyceria melicaria
Last reviewed: June 2026
Light
part sun
Water
medium
Size
12"–36" H × 6"–24" W
Bloom
Jun, Jul, Aug
Native to
AL, CT, GA, KY and 15 more states
Glyceria melicaria is a native perennial grass that forms clumps 1-3 feet tall with a moderate spread. It produces delicate flower heads during summer months and thrives in partial sun with average moisture. This cool-season grass provides a naturalistic texture to garden beds.
In an HOA neighborhood
Long Mannagrass 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.
- Requires consistently wet conditions that may create soggy appearance
- Can look unkempt compared to traditional turf grass
- May spread beyond intended planting area
Wildlife value
This native grass produces seeds that feed songbirds and small mammals. The foliage provides nesting material and shelter for various wildlife species.
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.
Does Long Mannagrass fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.