Muhly Grass

Image from Dylan Hackett

Muhly Grass (Muhlenbergia capillaris) is a perennial native grass which has become a very popular addition to many gardens and landscapes. Its most common name is Muhly Grass. The genus Muhlenbergia is in the grass family, the Poaceae. There are about 150 different species in this genus, found in the Midwest and Western U.S., as well Mexico. This particular species has been documented from the state of New York - stretching all the way to Texas.

The genus was named in honor of Gotthilf Henry Ernest Muhlenberg (1753-1815), a Lutheran pastor in Pennsylvania who was a distinguished amateur botanist. The specific epithet - (the second part of the botanical name) capillaris, refers to hair-like or branching – think capillaries. 

This beautiful grass can serve well in disturbed areas, with medium to dry moisture and full-to part-sun. Like many of our native grasses, rich soil may cause them to flop. Up until late summer, the plant is a clump of radiating leaves. As autumn approaches, Muhly Grass takes center stage when it bursts forth with its wispy purple/pink spikes of flowers. 

Muhly grass may be used effectively in a variety of plantings, whether it’s used as a formal border or in a naturalistic setting, such as a meadow or prairie. Its seeds are fodder for many songbirds and small animals. There is now a white-flowered cultivar (cultivated variety) available with the name ‘White Cloud’. 

Both John Manion, Arboretum Curator, and Charlie Belin, Volunteer, contributed to this piece.