Cats & Dogs
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources

Ilex aquifolium
English Holly is an evergreen shrub or tree known for its glossy, spiny leaves and bright red berries. While ornamental, the plant contains compounds that can cause gastrointestinal distress if ingested by pets.
Safety status
Cats & Dogs
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources
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
Vomiting, diarrhea, and depression.
Escalation note
Ingestion of the berries or leaves can lead to significant gastrointestinal upset. Please contact your veterinarian or a pet poison control center if you suspect your cat has ingested any part of this plant.
Dogs — concern notes
Common signs
Vomiting, diarrhea, and drooling.
Escalation note
The plant material can cause irritation to the digestive tract. If your dog has consumed this plant, monitor for signs of illness and consult your veterinarian for professional guidance.
Safer alternatives
No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.
ASPCA Toxic Plant List
toxicology · 99% reliability
Holly (Ilex aquifolium) is listed as toxic to both cats and dogs, causing vomiting, diarrhea, and depression.
NC State Extension Plant Toolbox
botanical · 94% reliability
Ilex aquifolium is an evergreen shrub with spiny leaves and red berries that are toxic if ingested.
Often compared with
Same safety verdict

Nicotiana glauca is a fast-growing shrub known for its glaucous, blue-green foliage and tubular yellow flowers. It contains pyridine alkaloids, specifically anabasine, which are highly toxic to animals if ingested.
Potentially toxic for cats & dogs.

Monstera deliciosa is a popular tropical houseplant known for its large, fenestrated leaves and vining growth habit. It contains insoluble calcium oxalate crystals that can cause irritation if ingested by pets.
Potentially toxic for cats & dogs.

Dracaena trifasciata is a popular, hardy houseplant known for its stiff, sword-like leaves with striking yellow margins. It is widely appreciated for its air-purifying qualities and ability to thrive in various indoor conditions.
Potentially toxic for cats & dogs.

Philodendrons are popular tropical foliage plants known for their lush, heart-shaped or split leaves. They contain insoluble calcium oxalate crystals that can cause irritation if ingested.
Potentially toxic for cats & dogs.