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Tall-Swamp Panicgrass

Dichanthelium scabriusculum

Last reviewed: August 2026

Tall-Swamp Panicgrass (Dichanthelium scabriusculum)
Photo: Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 160. Courtesy of Kentucky Native Plant Society. Scanned by Omnitek Inc., no known copyright restrictions (public domain)

Toxicity unknown

Tall-Swamp Panicgrass (Dichanthelium scabriusculum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Tall-Swamp Panicgrass as toxic to livestock.

Light

part sun

Water

low

Size

8"–24" H × 4"–12" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, AR, CT, DE and 15 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

Middle Atlantic Coastal PlainSoutheastern PlainsSouthern Coastal Plain

Tall panic grass is a native bunch grass that forms neat clumps with fine-textured foliage. It produces delicate seed heads from summer through fall and tolerates drought well once established.

In an HOA neighborhood

Tall-Swamp Panicgrass takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Natural grass appearance may be perceived as weedy
  • Seed heads can look unkempt to traditional landscaping preferences
  • May go dormant in winter creating bare patches

Wildlife value

The seeds provide food for songbirds and small mammals. As a native grass, it supports various insects and their larvae.

Common questions

How much sun does Tall-Swamp Panicgrass need?
Tall-Swamp Panicgrass grows best in part sun conditions.
When does Tall-Swamp Panicgrass bloom?
Tall-Swamp Panicgrass blooms in June, July, August, and September.
Where is Tall-Swamp Panicgrass native?
Tall-Swamp Panicgrass (Dichanthelium scabriusculum) is native to AL, AR, CT, DE and 15 more states, per the World Checklist of Vascular Plants (Kew).
Is Tall-Swamp Panicgrass toxic to livestock?
The USDA PLANTS Database does not flag Tall-Swamp Panicgrass as toxic to livestock.
Is Tall-Swamp Panicgrass HOA-friendly?
Tall-Swamp Panicgrass takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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