How much sun does Bottlebrush Threeawn need?

Bottlebrush Threeawn grows best in full sun conditions.

When does Bottlebrush Threeawn bloom?

Bottlebrush Threeawn blooms in June, July, August, and September.

Where is Bottlebrush Threeawn native?

Bottlebrush Threeawn (Aristida spiciformis) is native to AL, FL, GA, MS and 3 more states, per the World Checklist of Vascular Plants (Kew).

Is Bottlebrush Threeawn HOA-friendly?

Bottlebrush Threeawn takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Bottlebrush Threeawn

Name: Pollinator Patch
Author: Pollinator Patch

Aristida spiciformis

Last reviewed: August 2026

Toxicity unknown

Bottlebrush Threeawn (Aristida spiciformis) 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.

Light

full sun

Water

low

Size

12"–36" H × 6"–12" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, FL, GA, MS and 3 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.

Find rebates in your area

Browse plants for this ecoregion

Middle Atlantic Coastal Plain Southeastern Plains Southern Coastal Plain Southern Florida Coastal Plain

Bottlebrush threeawn is a fine-textured native bunch grass that forms compact clumps with narrow leaves. It produces distinctive bottlebrush-like seed heads from summer through fall that give the plant its common name.

In an HOA neighborhood

Bottlebrush Threeawn 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.

Very fine texture can appear weedy to untrained eyes
Seed heads may be perceived as untidy
Not widely recognized as ornamental

Wildlife value

The seed heads provide food for birds and small mammals. As a native grass, it supports various insects and provides nesting material for birds.

Common questions

How much sun does Bottlebrush Threeawn need?: Bottlebrush Threeawn grows best in full sun conditions.
When does Bottlebrush Threeawn bloom?: Bottlebrush Threeawn blooms in June, July, August, and September.
Where is Bottlebrush Threeawn native?: Bottlebrush Threeawn (Aristida spiciformis) is native to AL, FL, GA, MS and 3 more states, per the World Checklist of Vascular Plants (Kew).
Is Bottlebrush Threeawn HOA-friendly?: Bottlebrush Threeawn 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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