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Slim-Spike Three-Awn Grass

Aristida longespica

Last reviewed: July 2026

Slim-Spike Three-Awn Grass (Aristida longespica)
Photo: (c) aarongunnar, some rights reserved (CC BY), uploaded by aarongunnar

Light

full sun

Water

low

Size

12"–24" H × 6"–12" W

Bloom

Jun, Jul, Aug

Native to

AL, AR, AZ, CO and 29 more states

Aristida longespica is a native bunch grass that forms compact clumps with fine-textured foliage. It produces delicate seed heads in summer and tolerates drought conditions well once established. This grass maintains a relatively neat appearance throughout the growing season.

In an HOA neighborhood

Slim-Spike Three-Awn Grass is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.

Works well in: mid zone, street edge.

  • May appear dormant or brown in winter
  • Seed heads could be perceived as untidy by some HOAs

Wildlife value

The seed heads provide food for small birds and ground-feeding species. As a native grass, it supports various insects and contributes to local ecosystem health.

Common questions

How much sun does Slim-Spike Three-Awn Grass need?
Slim-Spike Three-Awn Grass grows best in full sun conditions.
When does Slim-Spike Three-Awn Grass bloom?
Slim-Spike Three-Awn Grass blooms in June, July, and August.
Where is Slim-Spike Three-Awn Grass native?
Slim-Spike Three-Awn Grass (Aristida longespica) is native to AL, AR, AZ, CO and 29 more states, per the USDA PLANTS Database and regional native plant society lists.
Is Slim-Spike Three-Awn Grass HOA-friendly?
Slim-Spike Three-Awn 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 Slim-Spike Three-Awn 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