English Holly — (c) Jennifer Aitkens, some rights reserved (CC BY)
Photo by (c) Jennifer Aitkens, some rights reserved (CC BY)iNaturalistCC BY
Pet safety reference

English Holly

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.

Christmas HollyEnglish HollyEuropean HollyIlex aquifolium
Light
Partial shade to full sun
Habit
Shrub or small tree
Care
Moderate

Safety status

Cats & Dogs

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

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

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.

Dogsconcern 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.

Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

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

Open source

Ilex aquifolium is an evergreen shrub with spiny leaves and red berries that are toxic if ingested.

cats safety pageMy cat ate English Hollydogs safety pageMy dog ate English Holly

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