North America Native Plant

Openflower Rosette Grass

Botanical name: Dichanthelium laxiflorum

USDA symbol: DILA9

Life cycle: perennial

Habit: grass

Native status: Native to the lower 48 states  

Synonyms: Panicum laxiflorum Lam. (PALA15)  âš˜  Panicum laxiflorum Lam. var. strictirameum (Hitchc. & Chase) Fernald (PALAS2)  âš˜  Panicum xalapense Kunth (PAXA3)   

Openflower Rosette Grass: A Quiet Native with Subtle Charm If you’re looking for a native grass that won’t steal the spotlight but will quietly do its job in your landscape, let me introduce you to openflower rosette grass (Dichanthelium laxiflorum). This perennial grass might not win any beauty contests, but ...

Openflower Rosette Grass: A Quiet Native with Subtle Charm

If you’re looking for a native grass that won’t steal the spotlight but will quietly do its job in your landscape, let me introduce you to openflower rosette grass (Dichanthelium laxiflorum). This perennial grass might not win any beauty contests, but it’s got character and some surprising benefits for wildlife-friendly gardens.

What Exactly Is Openflower Rosette Grass?

Openflower rosette grass is a native perennial grass that’s perfectly at home across much of the eastern United States. You might also see it listed under its old scientific names like Panicum laxiflorum, but don’t let the name changes fool you – it’s the same reliable plant. As its common name suggests, this grass forms distinctive rosettes, particularly in fall and winter, giving it a unique appearance among native grasses.

Where Does It Call Home?

This adaptable native has quite the range! You’ll find openflower rosette grass growing naturally across 22 states, from Pennsylvania down to Florida and west to Texas and Oklahoma. Its native territory includes Alabama, Arkansas, District of Columbia, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maryland, Mississippi, Missouri, North Carolina, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia, and West Virginia.

The Wetland Flexibility Factor

One of the most interesting things about this grass is its flexibility when it comes to moisture. Depending on where you live, it can handle different wetland conditions:

  • In coastal regions, it’s equally happy in wet or dry spots
  • In mountainous and piedmont areas, it prefers drier conditions but can tolerate some moisture
  • In the Great Plains, it’s adaptable to various moisture levels
  • In the Midwest and Northeast, it leans toward drier sites but isn’t picky

Why Consider This Grass for Your Garden?

Let’s be honest – openflower rosette grass isn’t going to be the star of your garden show. But here’s why it might earn a spot in your landscape:

Wildlife Benefits: While it’s not a major food source for large animals, this grass provides a steady 10-25% of the diet for many terrestrial birds. It also offers occasional cover for various wildlife species. Every little bit helps when you’re creating a wildlife-friendly space!

Low Maintenance: As a native perennial, this grass is naturally adapted to local conditions and requires minimal care once established.

Versatile Growing Conditions: It thrives in USDA hardiness zones 5-9 and adapts well to both partial shade and full sun locations.

Where Does It Fit in Your Landscape?

Openflower rosette grass works best in naturalized settings rather than formal gardens. Think:

  • Prairie restorations or wildflower meadows
  • Woodland edge plantings
  • Wildlife habitat areas
  • Low-maintenance groundcover in informal settings

It’s particularly useful if you’re trying to recreate natural grassland communities or provide habitat for native birds and small wildlife.

Growing Tips and Care

The beauty of native plants like openflower rosette grass is their general ease of care. Here’s what you need to know:

Planting: This grass adapts to various soil types and moisture levels, making it quite forgiving for new native gardeners.

Light Requirements: Partial shade to full sun – it’s not picky!

Watering: Once established, it’s quite drought tolerant. Water regularly the first year, then let nature take over.

Maintenance: Minimal pruning needed. You can cut it back in late winter if desired, but it’s not necessary.

The Bottom Line

Openflower rosette grass won’t be everyone’s cup of tea, and that’s perfectly fine. It’s not a showstopper, but it’s a solid, reliable native that supports local wildlife and requires almost no maintenance once established. If you’re working on a naturalized area, prairie restoration, or simply want to add some native diversity to your landscape without much fuss, this humble grass might just be what you’re looking for.

Remember, not every plant in your garden needs to be a star – sometimes the supporting cast members are just as important for creating a thriving, diverse ecosystem right in your backyard.

Wildlife Status

Want to attract wildlife or keep hungry critters away from your garden? Understanding the relationship between plants and wildlife is key. While plant tags may indicate deer and rabbit resistance, they don't tell the full story. Every gardener has experienced the disappointment of purchasing "deer-resistant" plants only to find them nibbled to the ground!

The extent to which plants are resistant to animal browsing is a matter of degree. Likewise, the extent to which a plant attracts wanted visitors also varies. Whether you want a garden full or free of wildlife, learning about interactions between a plant and wild animals can help you make smarter choices for the garden you desire.

As shown below Shrubby Indian Mallow isn't a large food source for animals or birds. You can confidently add this plant to your garden and rest assured knowing it's unlikely to be devoured by four-legged visitors.

Small animals

not a food source

not a source of cover

Large animals

2-5% of diet

Sparsely used as cover

Terrestrial birds

Average 10-25% of diet

Occasional source of cover

Water birds

not a food source

not a source of cover

Sources:

Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses. Southern Weed Science Society.

Openflower Rosette Grass

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

Dichanthelium (Hitchc. & Chase) Gould - rosette grass

Species

Dichanthelium laxiflorum (Lam.) Gould - openflower rosette grass

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