What are the symptoms if a cat eats Holly?

Vomiting and Diarrhea, Excessive Drooling (Ptyalism) or Lip Smacking, Abdominal Pain, Lethargy or Depression, Head Shaking or Pawing at Mouth

←

⚠ Caution

Holly

Q: Is Holly toxic to cats?

Caution: potentially harmful. Holly (Ilex spp.) includes many shrubs and trees with glossy leaves and bright berries. It is toxic to cats, and the berries are often the easiest part for a cat to find or swallow. Holly contains saponins and other irritating compounds. These can upset the stomach and intestines. The sharp leaves can also irritate the mouth, while fallen berries may attract curious cats during the holiday season. A cat that eats holly may drool, vomit, have diarrhea, smack the lips, or seem uncomfortable. Keep holly decorations and outdoor berries away from cats. Call a veterinarian if your cat eats several berries, vomits repeatedly, or seems weak.

Ilex spp.

Holly (Ilex spp.) includes many shrubs and trees with glossy leaves and bright berries. It is toxic to cats, and the berries are often the easiest part for a cat to find or swallow. Holly contains saponins and other irritating compounds. These can upset the stomach and intestines. The sharp leaves can also irritate the mouth, while fallen berries may attract curious cats during the holiday season. A cat that eats holly may drool, vomit, have diarrhea, smack the lips, or seem uncomfortable. Keep holly decorations and outdoor berries away from cats. Call a veterinarian if your cat eats several berries, vomits repeatedly, or seems weak.

Important Notes

Toxic compounds: saponins (ilicin and related compounds), methylxanthine-related compounds, trace cyanogens in berries

Mechanism: saponins cause intense GI mucosal irritation; systemic absorption may cause CNS and cardiac effects at higher doses

Symptoms: severe nausea, vomiting, diarrhea, lethargy, excessive head shaking, drooling; even 1–2 berries can cause significant symptoms

All holly species should be treated as hazardous — both fresh plants and dried/decorative holly

Contact your vet if any holly berry ingestion is suspected

Potentially Toxic Parts

Leaf

Fruit

Possible Symptoms Reported in Cats

Vomiting and Diarrhea

Gastrointestinal · Acute (Clinical signs can occur after ingesting as few as two berries).

Abdominal Pain

Gastrointestinal · Acute.

Excessive Drooling (Ptyalism) or Lip Smacking

Gastrointestinal · Immediate (Upon chewing or ingestion).

Lethargy or Depression

Neurological · Acute (Following GI symptoms).

Head Shaking or Pawing at Mouth

Dermal · Immediate.

Disclaimer: This summary was compiled from multiple sources and is for informational use only. It is not a diagnosis or treatment plan. Toxicity can vary based on the substance, amount, plant part, and individual cat. If you think your cat may have been exposed to a toxic substance, contact a veterinarian right away.