Spiked Muhly
Muhlenbergia glomerata
Last reviewed: June 2026
Muhlenbergia glomerata is a native bunch grass found across northern and western states. This drought-tolerant species blooms August through October with compact seed heads that attract bees.
The USDA PLANTS Database (opens in new tab) does not flag Spiked Muhly as toxic to livestock.
Light
full sun
Water
low
Size
24"–48" H × 12"–24" W
Bloom
Aug, Sep, Oct
Native to
CO, CT, IA, ID and 27 more states
Pollinators
bees
Spiked muhly is a native bunch grass that forms neat, upright clumps with fine-textured foliage. It produces attractive seed heads in late summer and fall that add movement and texture to the landscape.
Growing Spiked Muhly
Grow Spiked Muhly in full sun and low water. Mature plants reach 24 to 48 inches tall and spread 12 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Spiked Muhly is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- May look sparse in winter dormancy
Wildlife value
This grass provides nectar for bees during its late-season bloom period. The seeds also support various songbirds through fall and winter.
Common questions
- Where does Spiked Muhly naturally grow?
- Muhlenbergia glomerata is native to a wide range of states from Maine to Washington, including most of the northern tier and mountain west regions.
- When does Spiked Muhly bloom?
- This native grass produces its characteristic compact flower spikes from August through October, providing late-season blooms.
- What pollinators visit Muhlenbergia glomerata?
- Bees are documented visitors to Spiked Muhly, attracted to the flowers during the late summer and fall blooming period.
- How much water does Spiked Muhly need?
- This native grass is adapted to low water conditions once established, making it suitable for xeriscaping and natural landscaping in dry areas.
- Is Spiked Muhly toxic to livestock?
- The USDA PLANTS Database does not flag Spiked Muhly as toxic to livestock.
- Is Spiked Muhly HOA-friendly?
- Spiked Muhly is generally an HOA-friendly choice in the right placement, with low maintenance.
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 Spiked Muhly? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz