Is Holly Toxic to Cats and Dogs?
Holly is moderately toxic to cats and dogs — the berries and leaves cause vomiting and diarrhea, and the spiny leaves can injure the mouth. A holiday risk. Call a vet.
Can cause real harm — call a vet for guidance.
Can cause real harm — call a vet for guidance.
In an emergency, do not wait.
Medical disclaimer: This tool is for general information only and isnot a substitute for veterinary diagnosis or treatment. Toxicity depends on the amount, your pet’s size, and health history. If your pet may have ingested something harmful, contact your veterinarian or a poison control hotline ((888) 426-4435 / (855) 764-7661) immediately — do not wait for symptoms to appear.
What is Holly?
Holly is moderately toxic to cats and dogs — the berries and leaves cause vomiting and diarrhea, and the spiny leaves can injure the mouth. A holiday risk. Call a vet.
Also known as: ilex aquifolium, english holly, american holly, christmas holly, holly berries.
Symptoms to Watch For
🐕 In Dogs
- Vomiting and diarrhea from the saponins and other compounds
- Drooling and abdominal pain
- Lethargy and reduced appetite
- The spiny leaves can cause mechanical injury to the mouth and throat
🐈 In Cats
- Vomiting and diarrhea
- Drooling and abdominal pain
- Lethargy and reduced appetite
- Spine injury to the mouth from the leaves
What to Do If Ingested
- Remove any remaining plant material from the mouth.
- Rinse the mouth with water to reduce irritation and check for spines.
- Note whether the leaves, berries, or both were eaten.
- Call a veterinarian or poison hotline for guidance.
Steps apply to both cats and dogs. When in doubt, call a vet or poison hotline before acting.
When to Call the Vet Immediately
Call your veterinarian or a poison control hotline right away if you notice any of these:
- A large amount or the berries were eaten
- Persistent vomiting or diarrhea
- A spine is stuck in the mouth or throat
- Lethargy or dehydration
Frequently Asked Questions
Frequently Asked Questions
Which part of holly is most toxic?
The berries contain the highest concentration of the toxic compounds (saponins and other irritants), but the leaves are also toxic. Additionally, the spiny leaves can cause physical injury to the mouth and throat. Both the chemical and mechanical effects make holly a concern.
What are the signs of holly poisoning?
Vomiting, diarrhea, drooling, and abdominal pain are the most common signs. The spiny leaves can also cause mouth injury and drooling. Call a vet if a large amount or the berries were eaten, or if a spine appears stuck in the mouth or throat.
Is holly a common poisoning risk?
Yes, especially during the holidays when holly is brought indoors as a decoration. Pets can reach hanging sprigs or fallen berries and leaves. Keep holly out of reach, pick up any fallen parts immediately, and call a vet if it is chewed or eaten.
Sources
This entry is reviewed against the following authoritative veterinary sources.
Last reviewed: 2026-07-11