Non-native Plants

Berg’s Panicgrass

Panicum bergii

USDA symbol: PABE4

perennial grass

Lower 48 states: non-native, naturalized

If you’ve stumbled across the name Berg’s panicgrass (Panicum bergii), you’re likely looking at one of the lesser-known members of the vast grass family. This perennial grass has quietly established itself in parts of the southeastern United States, though it remains relatively obscure in both wild landscapes and garden settings. ...

Berg’s Panicgrass: An Uncommon Grass with Limited Garden Appeal

If you’ve stumbled across the name Berg’s panicgrass (Panicum bergii), you’re likely looking at one of the lesser-known members of the vast grass family. This perennial grass has quietly established itself in parts of the southeastern United States, though it remains relatively obscure in both wild landscapes and garden settings.

What Is Berg’s Panicgrass?

Berg’s panicgrass is a perennial grass species that belongs to the same genus as many familiar native grasses like switchgrass. Originally from South America, this species has found its way to several southeastern states where it grows as an introduced plant that reproduces on its own in the wild.

You might also see this plant listed under its synonym Panicum pilcomayense in some older botanical references, though Panicum bergii is the accepted scientific name today.

Where Does It Grow?

Currently, Berg’s panicgrass has established populations in Alabama, Georgia, Louisiana, and Texas. It tends to favor wetland areas or places that are frequently moist, earning it a facultative wetland status in both the Atlantic and Gulf Coastal Plain and Great Plains regions. This means you’re most likely to encounter it near water sources, though it can occasionally pop up in drier spots too.

  • Species observed
  • No observations

Should You Plant Berg’s Panicgrass in Your Garden?

Here’s where things get a bit tricky. While Berg’s panicgrass isn’t listed as invasive or particularly problematic, there’s remarkably little information available about its garden performance, aesthetic qualities, or ecological benefits. This lack of documentation suggests it’s not a popular choice among gardeners or landscapers.

As a non-native species, Berg’s panicgrass doesn’t offer the same ecological benefits as our native grasses. Native plants have co-evolved with local wildlife over thousands of years, providing crucial food sources and habitat that introduced species simply can’t match.

Better Native Alternatives

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

  • Switchgrass (Panicum virgatum) – A stunning native relative with excellent wildlife value
  • Little bluestem (Schizachyrium scoparium) – Beautiful fall color and bird-friendly seed heads
  • Gulf muhly (Muhlenbergia capillaris) – Gorgeous pink plumes in fall
  • Inland sea oats (Chasmanthium latifolium) – Unique flat seed heads and shade tolerance

Growing Conditions (What We Know)

Based on its wetland status and current distribution, Berg’s panicgrass likely prefers:

  • Moist to wet soil conditions
  • Areas with consistent moisture
  • Warm, humid climates typical of the southeastern United States

However, specific details about soil pH preferences, sun requirements, mature size, and care needs remain largely undocumented in horticultural literature.

The Bottom Line

While Berg’s panicgrass isn’t necessarily a bad plant, it’s not particularly compelling for garden use either. With so many spectacular native grass options available that provide real benefits to local ecosystems, there’s little reason to seek out this relatively unknown introduced species.

If you’re interested in adding grasses to your landscape, stick with well-documented native species that will support local wildlife while providing proven garden performance. Your local pollinators, birds, and beneficial insects will thank you for choosing plants they’ve evolved alongside.

Sometimes the most responsible gardening choice is simply to pass on the unfamiliar in favor of the tried, true, and locally beneficial.

Panicum bergii is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Panicum bergii is also known as:

Panicum pilcomayense | USDA symbol: PAPI

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" — matching plants to their ideal growing conditions, so they'll thrive with less care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Atlantic and Gulf Coastal Plain (AL, AR, DC, DE, FL, GA, IL, KY, LA, MD, MS, MO, NC, NJ, OK, PA, SC, TN, TX, VA)

Facultative Wetland

Great Plains (CO, KS, MN, MT, NE, NM, ND, OK, SD, TX, WY)

Facultative Wetland
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae Barnhart - Grass family
Genus: Panicum L. - panicgrass

Species: Panicum bergii Arechav. - Berg's panicgrass

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