North America Native Plant

Combs’ Panicgrass

Botanical name: Panicum rigidulum var. combsii

USDA symbol: PARIC

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Panicum combsii Scribn. & C.R. Ball (PACO22)  âš˜  Panicum longifolium Torr. var. combsii (Scribn. & C.R. Ball) Fernald (PALOC)   

Combs’ Panicgrass: A Hidden Gem for Native Plant Enthusiasts If you’re looking to add some authentic regional character to your native plant garden, let me introduce you to a delightful grass that might just become your new favorite: Combs’ panicgrass (Panicum rigidulum var. combsii). This charming perennial grass is one ...

Combs’ Panicgrass: A Hidden Gem for Native Plant Enthusiasts

If you’re looking to add some authentic regional character to your native plant garden, let me introduce you to a delightful grass that might just become your new favorite: Combs’ panicgrass (Panicum rigidulum var. combsii). This charming perennial grass is one of those understated beauties that truly shines when you give it a chance to strut its stuff in the right setting.

What Makes Combs’ Panicgrass Special?

Combs’ panicgrass is a native perennial grass that belongs to the large and diverse Panicum genus. You might also see it listed under its scientific synonyms Panicum combsii or Panicum longifolium var. combsii in older references, but don’t let the name changes confuse you – it’s the same wonderful plant.

As a true native, this grass has been quietly doing its thing across the southeastern and Mid-Atlantic regions long before any of us started thinking about sustainable gardening. There’s something deeply satisfying about growing a plant that belongs exactly where you’re planting it.

Where Does It Call Home?

Combs’ panicgrass has quite an impressive range across the United States. You’ll find this adaptable grass naturally occurring in Alabama, Arkansas, Delaware, Florida, Georgia, Louisiana, Maryland, Mississippi, North Carolina, Rhode Island, Tennessee, Texas, and Virginia. That’s a pretty extensive neighborhood!

Why Your Garden (and Local Wildlife) Will Love It

Here’s where Combs’ panicgrass really earns its keep in the garden. While it may not have the flashy flowers of your typical perennial border stars, it brings its own subtle charm and ecological value:

  • Native authenticity: You’re supporting local ecosystems by choosing plants that naturally belong in your area
  • Wildlife value: The seeds provide food for birds, and the grass structure offers habitat for beneficial insects
  • Low maintenance: Once established, native grasses typically require minimal fussing
  • Textural interest: Adds fine texture and gentle movement to garden compositions

Perfect Garden Situations

Combs’ panicgrass isn’t trying to be the star of your formal perennial border (and honestly, that’s perfectly fine). Instead, this grass excels in more naturalized settings where it can express its true character:

  • Native plant gardens and meadow plantings
  • Prairie restoration projects
  • Rain gardens and naturalized areas
  • Wildlife habitat gardens
  • Areas where you want authentic regional vegetation

Growing Conditions and Care

The beauty of working with native plants like Combs’ panicgrass is that they’re already adapted to your local conditions. Based on its natural distribution, this grass likely thrives in USDA hardiness zones 6 through 9, making it suitable for much of the southeastern and Mid-Atlantic regions.

While specific growing requirements for this variety aren’t extensively documented, most Panicum species are pretty adaptable when it comes to soil conditions. Give it a sunny to partially sunny spot, and it should settle in nicely. As with most native grasses, once established, it should be quite drought tolerant and require minimal supplemental watering.

Planting and Establishment Tips

Getting Combs’ panicgrass established in your garden is typically straightforward:

  • Plant in spring or early fall for best establishment
  • Choose a location with good drainage
  • Water regularly during the first growing season to help roots establish
  • Be patient – native grasses often take a season or two to really hit their stride
  • Allow natural reseeding if you want the grass to naturalize in appropriate areas

The Bottom Line

Combs’ panicgrass may not be the most well-known native plant, but that’s part of its charm. If you’re gardening within its natural range and looking to create authentic habitat while adding subtle texture to your landscape, this unassuming grass deserves serious consideration. It’s the kind of plant that quietly does its job, supports local wildlife, and adds that special sense of place that only true natives can provide.

Sometimes the best garden plants are the ones that don’t demand attention but simply belong – and Combs’ panicgrass fits that description perfectly.

Combs’ Panicgrass

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

Panicum L. - panicgrass

Species

Panicum rigidulum Bosc ex Nees - redtop panicgrass

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