North America Native Plant

Hairy Muhly

Botanical name: Muhlenbergia villiflora var. villosa

USDA symbol: MUVIV

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Muhlenbergia villosa Swallen (MUVI)   

Hairy Muhly: A Delicate Native Grass for Southwestern Gardens If you’re looking to add some authentic southwestern charm to your garden while supporting local ecosystems, hairy muhly (Muhlenbergia villiflora var. villosa) might just be the perfect grass for you. This delicate perennial grass brings a soft, naturalistic touch to drought-tolerant ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Hairy Muhly: A Delicate Native Grass for Southwestern Gardens

If you’re looking to add some authentic southwestern charm to your garden while supporting local ecosystems, hairy muhly (Muhlenbergia villiflora var. villosa) might just be the perfect grass for you. This delicate perennial grass brings a soft, naturalistic touch to drought-tolerant landscapes and is as tough as it is graceful.

What Makes Hairy Muhly Special?

Hairy muhly is a native grass that’s perfectly at home in the American Southwest. Also known by its synonym Muhlenbergia villosa, this perennial grass gets its hairy common name from the fine, soft texture of its foliage and seed heads. Don’t let the name fool you though – this grass is anything but coarse or unappealing!

As a true native species, hairy muhly has spent centuries adapting to the challenging conditions of its natural habitat. This means it’s naturally equipped to handle drought, extreme temperatures, and poor soils that would stress out many other garden plants.

Where Does Hairy Muhly Grow Naturally?

This charming grass calls the southwestern United States home, with natural populations documented in New Mexico and Texas. Its native range reflects its love for arid and semi-arid climates, making it an excellent choice for gardeners in similar conditions.

Why Plant Hairy Muhly in Your Garden?

There are several compelling reasons to consider adding hairy muhly to your landscape:

  • Authentic native appeal: Support local ecosystems while creating an authentic regional garden
  • Drought tolerance: Once established, it needs minimal supplemental watering
  • Low maintenance: This tough grass pretty much takes care of itself
  • Delicate texture: Provides soft, fine-textured contrast to bold desert plants
  • Wildlife habitat: Offers shelter and nesting material for small wildlife

Growing Conditions and Care

Hairy muhly thrives in USDA hardiness zones 7-9, making it suitable for much of the southwestern United States. Here’s what this easy-going grass needs to flourish:

Sunlight: Full sun is best, though it can tolerate some light shade

Soil: Well-draining soil is essential. This grass actually prefers poor to average soils and doesn’t need rich, fertile conditions

Water: Drought tolerant once established, but provide regular water during the first growing season

Space: Give plants room to spread naturally – they’ll form attractive clumps over time

Perfect Garden Companions

Hairy muhly works beautifully in native plant gardens, xeriscapes, and southwestern-style landscapes. It pairs wonderfully with other regional natives like desert marigold, penstemon, and various cacti and succulents. The grass’s fine texture provides a lovely contrast to the bold forms of desert plants.

Planting and Establishment Tips

For best results, plant hairy muhly in spring after the last frost. Here are some tips for success:

  • Choose a sunny location with good drainage
  • Dig a hole just as deep as the root ball but twice as wide
  • Water regularly the first year to help establish deep roots
  • Once established, cut back watering significantly
  • No fertilizer needed – this grass prefers lean conditions

A Note About Conservation

Hairy muhly has a global conservation status of S5T3. While this doesn’t indicate immediate concern for gardeners, it’s always wise to source plants from reputable native plant nurseries that use responsibly collected or propagated material.

Is Hairy Muhly Right for Your Garden?

If you garden in the southwestern United States and want to create a water-wise, low-maintenance landscape that supports native ecosystems, hairy muhly could be an excellent choice. Its delicate beauty and tough constitution make it ideal for gardeners who appreciate subtle elegance over flashy showstoppers.

However, if you’re outside its natural hardiness range or prefer lush, high-water gardens, you might want to consider other options. This grass is definitely best suited for those who embrace the beauty of arid-adapted plants.

Hairy Muhly

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Muhlenbergia Schreb. - muhly

Species

Muhlenbergia villiflora Hitchc. - hairy muhly

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA