Bottlebrush — (c) Maja Dumat, some rights reserved (CC BY)
Photo by (c) Maja Dumat, some rights reserved (CC BY)iNaturalistCC BY
Pet safety reference

Bottlebrush

Callistemon species

Bottlebrush is a popular ornamental shrub known for its unique, spike-like flowers that resemble traditional bottle-cleaning brushes. It is generally considered safe for household pets, though ingestion of large amounts of plant material may cause minor digestive discomfort.

BottlebrushCallistemonCallistemon species
Light
Full sun
Habit
Shrub
Care
Low

Safety status

Cats

Uncertain

Identity or evidence quality is not strong enough for a firm answer.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

Dogs

Generally safe

Consulted references do not classify the plant as toxic for that pet type, while still allowing for mild GI upset if large amounts are chewed.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Catsconcern notes

Common signs

None specifically documented, though potential for mild gastrointestinal irritation exists if large quantities are consumed.

Escalation note

There is no specific veterinary data indicating toxicity for cats. If your cat consumes a significant amount of the plant, monitor for vomiting or lethargy and contact your veterinarian.

Dogsconcern notes

Common signs

Mild gastrointestinal upset, such as vomiting or diarrhea, may occur if large amounts of fibrous plant material are ingested.

Escalation note

The plant is considered non-toxic to dogs. While generally safe, any significant ingestion of plant matter can cause temporary stomach upset; consult your veterinarian if symptoms persist.

Safer alternatives

No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.

Source evidence

ASPCA Toxic Plant List

veterinary · 99% reliability

Open source

The ASPCA lists Callistemon species as non-toxic to dogs.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Callistemon species are woody shrubs known for their brush-like inflorescences and are widely used in landscaping.

cats safety pagedogs safety page

Same genus

More from the Callistemon genus

Same safety verdict

Other plants with the same verdict

Same growing conditions

Plants for the same room