Cats
Generally safeConsulted 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.
cat safety reference
Is Button Fern safe for cats?
Pellaea rotundifolia
The Button Fern is a charming, compact fern known for its small, round, dark green leaflets arranged along wiry stems. It thrives in humid, shaded environments and is a popular choice for terrariums and indoor containers.
Cliff BrakePellaea rotundifoliaRound-leaved Fern
- Light
- Indirect, low to medium light
- Habit
- Clumping, spreading
- Care
- Moderate
Safety status
What this means for your cat
Cats are safe around button ferns — ASPCA lists Pellaea rotundifolia (under "cliff brake") as non-toxic to cats, with no toxic principle identified. Unlike many tropical "ferns" sold under the same name, this is a true Pellaea, and it has no recorded irritant for cats.
Sources: ASPCA (no pet-specific guidance — non-toxic listing only).
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.
Cats — concern notes
Common signs
None expected; however, ingestion of large amounts of fibrous plant material may cause mild gastrointestinal upset such as vomiting or diarrhea.
Escalation note
This plant is considered non-toxic. If your cat consumes a significant amount and shows signs of distress, contact your veterinarian for guidance.
Bring it home
Button Fernis generally pet-safe in ordinary household exposure. If you’d like one for your space, here’s a starting point.
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Source evidence
ASPCA Toxic and Non-Toxic Plants List
toxicology · 99% reliability
The Cliff Brake (Pellaea rotundifolia) is listed as non-toxic to both cats and dogs.
Plants of the World Online - Pellaea rotundifolia
botanical · 95% reliability
Provides the accepted botanical nomenclature and distribution for Pellaea rotundifolia.
Questions about Button Fern
Is Button Fern toxic to cats?
Button Fern (Pellaea rotundifolia) is considered non-toxic to cats according to the ASPCA provenance audit. Keeping it in your home is generally safe, though non-toxic does not mean harmless in large quantities.
What happens if my cat eats Button Fern?
No toxic effects are expected, but ingesting large amounts of fibrous plant material may cause mild gastrointestinal upset such as vomiting or diarrhea. Symptoms should be minor and short-lived.
How much Button Fern would make a cat sick?
Button Fern has no known toxic threshold for cats — the plant is non-toxic. Gastrointestinal upset is possible only if your cat eats a significant amount of the fibrous fronds, and even then the effect is expected to be mild.
What should I do if my cat ate a large amount of Button Fern?
Monitor your cat for vomiting, diarrhea, or lethargy. Because Button Fern is non-toxic, serious harm is not expected, but if your cat shows signs of distress or symptoms persist, contact your veterinarian for guidance.
Same cat verdict
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