North America Native Plant

Bullgrass

Botanical name: Muhlenbergia emersleyi

USDA symbol: MUEM

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Muhlenbergia gooddingii Söderst. (MUGO)   

Bullgrass: A Resilient Native Grass for Southwestern Gardens If you’re looking for a tough, drought-tolerant grass that’s perfectly at home in the American Southwest, let me introduce you to bullgrass (Muhlenbergia emersleyi). This native perennial grass might not be the flashiest plant in your garden, but what it lacks in ...

Rare plant alert!

Region: Conservation status by state

Status: S3?Q: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Uncertain taxonomy: ⚘ 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 ⚘

Bullgrass: A Resilient Native Grass for Southwestern Gardens

If you’re looking for a tough, drought-tolerant grass that’s perfectly at home in the American Southwest, let me introduce you to bullgrass (Muhlenbergia emersleyi). This native perennial grass might not be the flashiest plant in your garden, but what it lacks in drama, it more than makes up for in resilience and ecological value.

What Is Bullgrass?

Bullgrass is a native perennial grass that belongs to the diverse Muhlenbergia genus. You might also see it listed under its synonym, Muhlenbergia gooddingii, in older gardening references. As a true native species, bullgrass has been quietly thriving in American landscapes long before any of us started thinking about water-wise gardening.

Where Does Bullgrass Call Home?

This hardy grass is native to the lower 48 states, with populations primarily found in Arizona, New Mexico, and Texas, plus some interesting disjunct populations as far east as North Carolina. This wide but scattered distribution tells us that bullgrass is adaptable, but it definitely has its preferences when it comes to climate and growing conditions.

Why Consider Bullgrass for Your Garden?

Here’s where bullgrass really shines. As a native species, it’s perfectly adapted to local conditions, which means:

  • Excellent drought tolerance once established
  • Low maintenance requirements
  • Natural resistance to local pests and diseases
  • Provides ecological benefits to local wildlife
  • Adds authentic regional character to your landscape

The fine-textured foliage creates an attractive backdrop for showier native wildflowers, and its seeds provide food for local bird species. It’s the kind of plant that works quietly behind the scenes to support your local ecosystem.

A Word About Rarity

Before you rush out to find bullgrass, there’s something important to know. This species has a Global Conservation Status that suggests it may be uncommon in parts of its range. If you’re interested in growing bullgrass, please make sure you source it from reputable native plant nurseries that propagate their own stock rather than wild-collecting. This helps protect wild populations while still allowing you to enjoy this wonderful grass in your garden.

Perfect Garden Settings for Bullgrass

Bullgrass is ideal for:

  • Xerophytic or drought-tolerant garden designs
  • Native plant gardens celebrating regional flora
  • Naturalistic landscapes that mimic local habitats
  • Low-water-use gardens in arid climates
  • Wildlife gardens focused on supporting native species

Growing Bullgrass Successfully

The good news is that bullgrass isn’t particularly fussy once you understand its basic needs. Based on its native range, it likely thrives in USDA hardiness zones 7-10, though local microclimates can extend or limit this range.

Site Selection

Choose a location with well-draining soil – bullgrass definitely doesn’t appreciate wet feet. Full sun to partial sun exposure works best, mimicking the open habitats where it naturally occurs.

Planting and Establishment

Plant bullgrass in spring or early fall when temperatures are moderate. Give new plantings regular water during their first growing season to help establish a strong root system. After that, you can gradually reduce watering as the plant becomes drought-tolerant.

Ongoing Care

Once established, bullgrass is refreshingly low-maintenance. It may benefit from occasional deep watering during extended dry periods, but avoid overwatering. You can cut it back in late winter before new growth begins if you prefer a tidy appearance, though many gardeners enjoy leaving the seed heads for winter interest and wildlife food.

The Bottom Line

Bullgrass might not be the most glamorous choice for your garden, but it’s exactly the kind of reliable, ecologically valuable plant that forms the backbone of great native gardens. If you’re gardening in its native range and want a grass that truly belongs in your landscape, bullgrass deserves serious consideration. Just remember to source it responsibly, and you’ll have a beautiful, sustainable addition to your garden that celebrates the natural heritage of your region.

Bullgrass

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 emersleyi Vasey - bullgrass

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