Undaunted® Muhly Grass

Undaunted® ruby muhly grass (Muhlenbergia reverchonii 'PUND01S') is a long-lived grass selected from the southern Great Plains. Plant Select describes fine-textured gray-green mounds topped with ruby flowers in late summer; backlighting brings out their color in autumn, and the seedheads add winter interest. [Plant Select's exact plant profile](https://plantselect.org/plant/muhlenbergia-reverchonii-pund01s/). ## Size and placement The listed mature size is 16–20 inches tall and 18–24 inches wide, with USDA hardiness in zones 5–10. Grow it in sun; Plant Select lists clay or loam soil and moderate-to-dry water needs. It also grows in sandy soil, though the profile notes that it needs regular watering there and grows more slowly. ## Garden role Use Undaunted in mass plantings, as an accent, or for erosion control. A position where sunlight can pass through the flower heads makes the ruby display especially vivid in autumn. ## Maintenance Plant Select recommends cutting the grass back in early spring. After five to ten years, divide or replace older plants to maintain a strong display.