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Hemlock Panic Grass

Dichanthelium columbianum

Last reviewed: June 2026

Hemlock Panic Grass (Dichanthelium columbianum)
Photo: Doug Goldman. USDA-NRCS-NPDT United States, NC, Guilford Co., Greensboro, cultivated. May 10, 2011. / Wikimedia Commons (Public domain)

Light

part sun

Water

medium

Size

12"–36" H × 6"–18" W

Bloom

Jun, Jul, Aug

Native to

CT, DE, IA, IL and 16 more states

Dichanthelium columbianum is a grass that forms neat clumps with fine-textured foliage. It produces delicate seed heads during summer months and maintains a relatively compact, orderly appearance throughout the growing season.

In an HOA neighborhood

Hemlock Panic Grass is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Wildlife value

This native grass provides seeds for songbirds and small mammals. The foliage offers nesting material and shelter for beneficial insects.

Common questions

How much sun does Hemlock Panic Grass need?
Hemlock Panic Grass grows best in part sun conditions.
When does Hemlock Panic Grass bloom?
Hemlock Panic Grass blooms in June, July, and August.
Where is Hemlock Panic Grass native?
Hemlock Panic Grass (Dichanthelium columbianum) is native to CT, DE, IA, IL and 16 more states, per the USDA PLANTS Database and regional native plant society lists.
Is Hemlock Panic Grass HOA-friendly?
Hemlock Panic Grass is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Hemlock Panic Grass? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Not sure where to start? Take the 2-minute yard quiz