White Cloud Muhly Grass

White Cloud is a named white-flowering form of Muhlenbergia capillaris, a clumping warm-season grass native to the southeastern United States. Its fine foliage forms a green mound, with airy white flower heads rising above it; bloom timing and performance vary with site conditions. [University of Florida IFAS Extension](https://blogs.ifas.ufl.edu/charlotteco/2024/11/12/color-for-the-fall-pink-muhly-grass/) ## Form and Flowering In a University of California, Davis trial, plants flowered in June, July, September, and October. The trial recorded 3.4 feet tall by 3.25 feet wide after two years and reported a mature size of 3–4 feet in each direction. Plants performed poorly in the hot, dry Davis setting under the irrigation treatments tested, so those results describe that site rather than every garden. [UC Davis Landscape Plant Irrigation Trials](https://uclpit.ucdavis.edu/muhlenbergia_white_cloud) ## Growing Conditions Pink muhly grass grows in sun and adapts to habitats from marshy to well-drained; it tolerates drought after establishment and has salt tolerance. The extension source describes White Cloud as having the same features as the pink-flowered form, apart from its white flower heads. A rain garden or massed planting can show off the airy plumes while accommodating seasonal wet and dry conditions. ## Maintenance In spring, cut back old winter foliage to refresh the clump. Divide older clumps when they become crowded, and water newly planted grass until established. In hot, dry conditions, observe the plants and adjust irrigation to local soil and weather rather than assuming the UC Davis trial represents every location.