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.
Sources
cat safety reference
Is Jackson Brier safe for cats?
Smilax lanceolata
Jackson Brier is a woody, climbing vine known for its lance-shaped leaves and resilience. It is considered non-toxic to household pets, though its fibrous nature may cause mild digestive discomfort if consumed in large quantities.
Jackson BrierLanceleaf GreenbrierSmilax lanceolata
- Light
- Partial shade to full sun
- Habit
- Vining
- Care
- Low
Safety status
What this means for your cat
Cats can share a yard with Jackson Brier safely — the ASPCA lists Smilax lanceolata as non-toxic for cats, with no toxic principle on file, though the thorny stems are more of a paw-and-mouth scratch hazard than a poisoning one.
Sources: ASPCA.
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
The plant is non-toxic, but if your cat consumes a significant amount and shows signs of distress, contact your veterinarian.
Bring it home
Jackson Brieris generally pet-safe in ordinary household exposure. If you’d like one for your space, here’s a starting point.
Shop on AmazonSome links earn us a small commission. They never affect our safety classifications.
Source evidence
ASPCA Toxic Plant List
toxicology · 99% reliability
Jackson Brier is listed as non-toxic to both cats and dogs.
NC State Extension Plant Toolbox
botanical · 94% reliability
Smilax lanceolata is a native vine often found in woodlands, valued for its evergreen foliage.
Same cat verdict
Related plants for cats
Acorn Squash
Cucurbita pepo
Acorn squash is a popular edible winter squash known for its ribbed, dark green skin and sweet, yellow-orange flesh. It is widely cultivated for culinary use and is considered safe for household pets.
Generally safe for cats & dogs.
Banana Squash
Cucurbita maxima var. banana
Banana squash is a large, edible winter squash variety known for its elongated shape and sweet, dense flesh. It is considered safe for household pets, though large ingestions of raw plant material may cause minor digestive discomfort.
Generally safe for cats & dogs.
Bur Gourd
Cucumis anguria
Bur Gourd is a vining plant in the cucumber family known for its small, spiky, edible fruits. It is generally considered safe for household pets, though its fibrous nature may cause minor digestive discomfort if consumed in large quantities.
Generally safe for cats & dogs.