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 Greenbrier safe for cats?
Smilax sp.
Greenbrier is a genus of woody, often thorny vines known for their resilience and climbing habit. While generally considered safe for pets, the fibrous nature of the plant can cause minor digestive discomfort if consumed in large quantities.
CatbrierMulberry Bush GreenbrierSmilaxSmilax sp.
- Light
- Bright indirect to full sun
- Habit
- Vining
- Care
- Low
Safety status
What this means for your cat
Cats are safe around Greenbrier — the ASPCA lists Smilax species as non-toxic to felines. The thorns on outdoor stems are far more likely to cause a problem than the plant chemistry; an indoor cat that nibbles a cut piece is not at toxic risk.
Sources: ASPCA (no first-aid guidance).
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 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.
Bring it home
Greenbrieris 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 ASPCA lists Smilax species as non-toxic to cats and dogs.
Plants of the World Online - Smilax
botanical · 95% reliability
Botanical database entry for the genus Smilax, confirming its classification and distribution.