Running Mountaingrass
Oplismenus compositus
Last reviewed: June 2026
Light
part shade
Water
medium
Size
6"–24" H × 12"–36" W
Bloom
Jun, Jul, Aug
Native to
AL, AR, FL, GA and 8 more states
Browse plants for this ecoregion
Running mountaingrass is a low-growing native perennial that forms spreading clumps in shaded areas. This woodland grass produces delicate flower spikes in summer and works well as a groundcover under trees or in naturalized areas.
In an HOA neighborhood
Running Mountaingrass 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.
- Running growth habit may appear uncontrolled
- Low height can look unkempt in formal settings
- May spread beyond intended boundaries
Wildlife value
While pollinator support is limited, this grass provides habitat and potential food sources for ground-dwelling wildlife and small birds that may feed on its seeds.
Common questions
- How much sun does Running Mountaingrass need?
- Running Mountaingrass grows best in part shade conditions.
- When does Running Mountaingrass bloom?
- Running Mountaingrass blooms in June, July, and August.
- Where is Running Mountaingrass native?
- Running Mountaingrass (Oplismenus compositus) is native to AL, AR, FL, GA and 8 more states, per the USDA PLANTS Database and regional native plant society lists.
- Is Running Mountaingrass HOA-friendly?
- Running Mountaingrass 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 Running Mountaingrass? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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