Annual-bristle Grass
Aristida adscensionis
Last reviewed: June 2026
Light
full sun
Water
low
Size
4"–24" H × 2"–8" W
Bloom
May, Jun, Jul, Aug, Sep
Native to
AZ, CA, CO, KS and 10 more states
Browse plants for this ecoregion
Annual bristlegrass is a short-lived native grass that forms small clumps during the growing season. It produces delicate seed heads from late spring through fall and typically dies back with the first frost.
In an HOA neighborhood
Annual-bristle Grass 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.
- Dies completely each winter leaving bare spots
- Can appear weedy and unkempt
- Bristly seed heads may look messy to some
Wildlife value
This grass provides seeds for birds and small mammals. The foliage offers nesting material and shelter for beneficial insects.
Common questions
- How much sun does Annual-bristle Grass need?
- Annual-bristle Grass grows best in full sun conditions.
- When does Annual-bristle Grass bloom?
- Annual-bristle Grass blooms in May, June, July, August, and September.
- Where is Annual-bristle Grass native?
- Annual-bristle Grass (Aristida adscensionis) is native to AZ, CA, CO, KS and 10 more states, per the USDA PLANTS Database and regional native plant society lists.
- Is Annual-bristle Grass HOA-friendly?
- Annual-bristle Grass 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 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 Annual-bristle Grass? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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