North America Non-native Plant

Brunswickgrass

Botanical name: Paspalum nicorae

USDA symbol: PANI3

Life cycle: perennial

Habit: grass

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Brunswickgrass: What You Need to Know About This Southern Grass If you’ve stumbled across the name Brunswickgrass in your plant research, you’re looking at Paspalum nicorae, a perennial grass that’s made its way into parts of the southeastern United States. While it might sound like just another lawn grass, there’s ...

Brunswickgrass: What You Need to Know About This Southern Grass

If you’ve stumbled across the name Brunswickgrass in your plant research, you’re looking at Paspalum nicorae, a perennial grass that’s made its way into parts of the southeastern United States. While it might sound like just another lawn grass, there’s more to this story than meets the eye.

The Basics: What is Brunswickgrass?

Brunswickgrass belongs to the large and diverse Paspalum genus, which includes many grass species found throughout warmer climates. As a perennial grass, it comes back year after year once established, making it a persistent presence wherever it grows.

Here’s what we know for certain about this grass:

  • It’s a non-native species that has naturalized in the wild
  • It reproduces on its own without human intervention
  • It’s part of the true grass family (Poaceae)
  • It has established populations that persist over time

Where You’ll Find It

Currently, Brunswickgrass has been documented in three southeastern states: Alabama, Florida, and Georgia. This limited distribution suggests it prefers the warm, humid conditions typical of the Southeast.

Should You Plant Brunswickgrass?

Here’s where things get a bit tricky. While Brunswickgrass isn’t currently listed as invasive or noxious, its status as a non-native species that naturalizes readily should give any responsible gardener pause. The lack of detailed information about its growth habits, environmental impact, and long-term behavior in cultivated settings makes it a bit of a wild card.

If you’re drawn to ornamental grasses for your landscape, consider these beautiful native alternatives instead:

  • Little bluestem (Schizachyrium scoparium) – gorgeous fall color
  • Switchgrass (Panicum virgatum) – excellent for wildlife
  • Eastern gamagrass (Tripsacum dactyloides) – dramatic height and texture
  • Purple lovegrass (Eragrostis spectabilis) – delicate, cloud-like appearance

The Mystery Factor

One of the most honest things we can say about Brunswickgrass is that there’s still a lot we don’t know. Details about its preferred growing conditions, mature size, aesthetic qualities, and ecological relationships remain largely undocumented in accessible sources. This knowledge gap makes it difficult to recommend for home landscapes.

A Better Path Forward

Rather than taking a chance on a plant with unknown qualities and potential impacts, why not explore the rich diversity of native grasses? Native species come with the added benefits of supporting local wildlife, requiring less maintenance once established, and contributing to healthy ecosystem function.

Your local native plant society or extension office can provide specific recommendations for grasses that will thrive in your area while supporting the broader web of life in your region.

The Bottom Line

While Brunswickgrass might seem like an intriguing option, the combination of its non-native status and the lack of detailed horticultural information makes it a questionable choice for most gardeners. When in doubt, go native – you’ll be supporting local ecosystems while creating a more resilient and beautiful landscape.

How

Brunswickgrass

Grows

Growing season

Spring, Summer, Fall

Lifespan

Moderate

Growth form & shape

Rhizomatous and Semi-Erect

Growth rate

Rapid

Height at 20 years
Maximum height

2.0

Foliage color

Gray-Green

Summer foliage density

Dense

Winter foliage density

Moderate

Foliage retention

No

Flowering

No

Flower color

Yellow

Fruit/seeds

No

Fruit/seed color

Brown

Allelopath

No

Nitrogen fixing

None

Toxic

None

C:N Ratio

Medium

Fire Resistant

No

Foliage Texture

Fine

Low-growing Grass

Yes

Resproutability

No

Coppice Ability

No

Bloat

None

Brunswickgrass

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

Yes

Anaerobic tolerance

Low

CaCO₃ tolerance

Low

Cold Stratification

No

Drought tolerance

Low

Nutrient requirement

High

Fire tolerance

High

Frost-free days minimum

240

Hedge tolerance

None

Moisture requirement

Medium

pH range

5.4 to 7.0

Plants per acre

11000 to 19000

Precipitation range (in)

32 to 60

Min root depth (in)

12

Salt tolerance

None

Shade tolerance

Intolerant

Min temperature (F)

7

Cultivating

Brunswickgrass

Flowering season

Late Spring

Commercial availability

Routinely Available

Fruit/seed abundance

High

Fruit/seed season

Summer to Summer

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

Yes

Propagated by tubers

No

Seed per pound

277000

Seed spread rate

Rapid

Seedling vigor

Medium

Small grain

No

Vegetative spread rate

Rapid

Brunswickgrass

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

Paspalum L. - crowngrass

Species

Paspalum nicorae Parodi - Brunswickgrass

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