North America Native Plant

Hairy Grama

Botanical name: Bouteloua hirsuta

USDA symbol: BOHI2

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Hairy Grama: A Tough-as-Nails Native Grass for Low-Maintenance Gardens If you’re looking for a native grass that can survive almost anything Mother Nature throws at it, let me introduce you to hairy grama (Bouteloua hirsuta). Don’t let the name fool you – this little grass is neither particularly hairy nor ...

Hairy Grama: A Tough-as-Nails Native Grass for Low-Maintenance Gardens

If you’re looking for a native grass that can survive almost anything Mother Nature throws at it, let me introduce you to hairy grama (Bouteloua hirsuta). Don’t let the name fool you – this little grass is neither particularly hairy nor particularly glamorous, but it’s got character in spades and could be exactly what your drought-prone landscape needs.

What Is Hairy Grama?

Hairy grama is a native perennial grass that’s been quietly holding down the fort across much of North America for centuries. This tough little plant typically grows just 6 inches tall, forming small clumps with fine-textured, green foliage. While it won’t win any beauty contests with its inconspicuous flowers and modest brown seed heads, what it lacks in flashiness it makes up for in pure determination.

Where Does It Grow Naturally?

This native grass has an impressive range, naturally occurring across 28 states from coast to coast. You’ll find hairy grama thriving everywhere from Arizona and Colorado to Florida and Maine, with particularly strong populations throughout the Great Plains states like Kansas, Nebraska, and Texas. It’s truly a plant that knows how to adapt to different regions while maintaining its essential character.

Why You Might Want Hairy Grama in Your Garden

Here’s where hairy grama really shines – it’s practically indestructible once established. This grass is perfect for gardeners who want to embrace native plants but don’t have time for high-maintenance landscaping. Consider adding it to your garden if you:

  • Live in an area with hot, dry summers
  • Have poor, rocky, or sandy soil that other plants struggle with
  • Want to reduce lawn area with something more sustainable
  • Are creating a native plant or prairie garden
  • Need erosion control on slopes or disturbed areas
  • Prefer plants that basically take care of themselves

The Reality Check: What Hairy Grama Won’t Do

Let’s be honest – hairy grama isn’t going to be the star of your flower garden. It’s a supporting player, not the leading lady. The flowers are barely noticeable, and during extreme drought, it may go dormant and look pretty rough. If you’re looking for showy blooms or lush green carpet year-round, this probably isn’t your grass.

Perfect Growing Conditions

The beauty of hairy grama lies in its simplicity. This grass thrives in conditions that would stress out many other plants:

  • Sunlight: Full sun only – it won’t tolerate shade
  • Soil: Well-draining soil is essential; it adapts to sandy and medium-textured soils but struggles in heavy clay
  • Water: Extremely drought tolerant once established; actually prefers dry conditions
  • pH: Slightly acidic to neutral soil (pH 6.0-7.2)
  • Hardiness: Cold hardy to USDA zones 3-9, tolerating temperatures as low as -38°F

How to Grow Hairy Grama Successfully

Growing hairy grama is refreshingly straightforward, though it does require some patience initially:

Starting from Seed: This grass is typically grown from seed, with about 800,000 seeds per pound (they’re tiny!). Plant seeds in spring after the last frost. Scatter them over prepared soil and barely cover – they need light to germinate. Keep the seedbed moist until germination occurs.

Establishment Phase: Don’t expect instant gratification. Hairy grama has low seedling vigor and spreads slowly. The first year, focus on keeping weeds at bay while your grass gets established. Once mature, it has a moderate growth rate and can live for many years.

Ongoing Care: Here’s the best part – there really isn’t much ongoing care needed. No fertilizing (it actually prefers low fertility), minimal watering once established, and no need for regular maintenance. It’s fire-tolerant and will regrow after burning.

Landscape Uses and Design Ideas

Hairy grama works best when you embrace its natural, low-key character:

  • Use it as a groundcover in naturalized areas
  • Plant it on slopes for erosion control
  • Include it in native plant gardens for authentic regional character
  • Mix it with other native grasses and wildflowers in prairie-style plantings
  • Use it to transition between cultivated garden areas and wild spaces

Wildlife and Environmental Benefits

While hairy grama may not be a pollinator magnet (it’s wind-pollinated), it does contribute to the ecosystem. Small birds may eat the seeds, and the grass provides habitat for various insects. Most importantly, as a native species, it supports the complex web of local wildlife relationships that have evolved over thousands of years.

Is Hairy Grama Right for Your Garden?

Hairy grama is perfect for gardeners who appreciate understated native plants and want something virtually maintenance-free. It’s ideal for challenging sites where other plants struggle and for anyone interested in authentic regional landscaping. Just remember that this grass is about function over form – it’s the reliable workhorse, not the garden showstopper.

If you’re ready to embrace a truly low-maintenance native grass that connects your garden to the broader landscape, hairy grama might just be the perfect addition to your outdoor space. Sometimes the most valuable plants are the ones that simply do their job quietly and efficiently, year after year.

How

Hairy Grama

Grows

Growing season

Summer

Lifespan

Long

Growth form & shape

Colonizing and Decumbent

Growth rate

Moderate

Height at 20 years
Maximum height

0.5

Foliage color

Green

Summer foliage density

Porous

Winter foliage density

Porous

Foliage retention

No

Flowering

No

Flower color
Fruit/seeds

No

Fruit/seed color

Brown

Allelopath

No

Nitrogen fixing

None

Toxic

None

C:N Ratio

Medium

Fire Resistant

Yes

Foliage Texture

Fine

Low-growing Grass

Yes

Resproutability

No

Coppice Ability

No

Bloat

None

Hairy Grama

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

No

Anaerobic tolerance

None

CaCO₃ tolerance

Medium

Cold Stratification

No

Drought tolerance

High

Nutrient requirement

Low

Fire tolerance

High

Frost-free days minimum

90

Hedge tolerance

None

Moisture requirement

Low

pH range

6.0 to 7.2

Plants per acre
Precipitation range (in)

7 to 30

Min root depth (in)

16

Salt tolerance

Low

Shade tolerance

Intolerant

Min temperature (F)

-38

Cultivating

Hairy Grama

Flowering season

Spring

Commercial availability

Field Collections Only

Fruit/seed abundance

Medium

Fruit/seed season

Spring to Fall

Fruit/seed persistence

No

Propagated by bare root

No

Propagated by bulb

No

Propagated by container

No

Propagated by corm

No

Propagated by cuttings

No

Propagated by seed

Yes

Propagated by sod

No

Propagated by sprigs

No

Propagated by tubers

No

Seed per pound

800000

Seed spread rate

Slow

Seedling vigor

Low

Small grain

No

Vegetative spread rate

Slow

Hairy Grama

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

Bouteloua Lag. - grama

Species

Bouteloua hirsuta Lag. - hairy grama

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