Is It Poisonous
Toxic

Genuinely dangerous if eaten. Treat any ingestion seriously.

Is English Ivy Poisonous? – Toxicity to Pets and Humans

PlantsDogsCatsChildren By Hannah Reeve · Researched and fact-checked against ASPCA and poison-control sources

English ivy is toxic to dogs, cats, and horses. The leaves contain triterpenoid saponins that irritate the gastrointestinal tract and cause vomiting, diarrhea, and excessive drooling. The foliage is more toxic than the berries. English ivy also commonly causes contact dermatitis in people who handle it.

The ASPCA lists English ivy (Hedera helix, also known as Branching Ivy, Glacier Ivy, Needlepoint Ivy, Sweetheart Ivy, and California Ivy) as toxic to dogs, cats, and horses, with triterpenoid saponins (hederagenin) as the toxic principles. The ASPCA specifically notes that foliage is more toxic than berries.

What Part of English Ivy Is Toxic?

The leaves and sap contain the highest concentration of saponins. Contrary to what many people assume, the berries are less toxic than the leaves. All green parts of the plant should still be treated as toxic.

The plant also contains polyacetylene compounds that contribute to skin sensitivity. These are responsible for the contact dermatitis English ivy commonly causes in gardeners who handle it frequently.

Symptoms of English Ivy Ingestion

Dogs and cats

  • Vomiting
  • Abdominal pain and cramping
  • Hypersalivation (drooling)
  • Diarrhea
  • Lethargy

Symptoms are typically gastrointestinal and self-limiting in mild exposures. Large ingestion can cause more severe GI distress and should be evaluated by a vet.

Humans and children

  • Nausea and vomiting after ingesting leaves or berries
  • Abdominal cramps and diarrhea
  • Skin rash, redness, and itching from contact with the plant (contact dermatitis)
  • Eye irritation from sap

The berries look like small dark clusters and can attract children. Ingestion typically causes mild GI symptoms. Skin reactions from touching the plant are more common than poisoning from eating it, and can range from mild redness to blistering in sensitive individuals.

What to Do

  1. Remove any plant material from the mouth.
  2. Rinse the mouth with water.
  3. Wash skin with soap and water if contact occurred.
  4. Flush eyes with clean water if sap entered them.
  5. Call poison control at 1-800-222-1222 (US) or your vet if a significant amount was ingested or symptoms are severe.

Most cases of English ivy ingestion in pets and humans resolve without medical treatment. Persistent vomiting or diarrhea warrants a call to your vet or doctor.

Safe Handling and Skin Precautions

English ivy is one of the more common causes of plant-related contact dermatitis. Many people become sensitized after repeated exposures, meaning reactions tend to worsen over time.

  • Always wear gloves when pruning or weeding ivy.
  • Wear long sleeves to protect arms from trailing stems.
  • Wash all exposed skin with soap and water after working with English ivy.
  • If you develop a rash that blisters or spreads, see a doctor. Topical corticosteroids are sometimes needed for significant reactions.

In outdoor settings, English ivy is an aggressive grower that can damage trees by adding weight to branches and blocking light. Many regions classify it as invasive. Removing it reduces both environmental harm and household poisoning risk.

Frequently Asked Questions

Are English ivy berries poisonous to dogs? Yes, though they are less toxic than the leaves. Both should be treated as poisonous. A dog that eats berries may experience vomiting and diarrhea. Call your vet for guidance.

Can I have English ivy in my home with cats? It is possible if the plant is genuinely out of reach. Cats that chew on plants should not have access to English ivy. Non-toxic trailing alternatives such as spider plant (Chlorophytum comosum) are safer for cat owners.

Is English ivy the same as Boston ivy or poison ivy? No. Boston ivy (Parthenocissus tricuspidata) is a different climbing plant. Poison ivy (Toxicodendron radicans) is unrelated and causes a more severe allergic skin reaction through urushiol. English ivy (Hedera helix) is its own species with a different toxicity profile from either.

Will contact with English ivy always cause a rash? Not everyone reacts. Some people handle it without any skin response, while others develop significant dermatitis. Sensitivity often increases with repeated exposures. If you have had a reaction before, wear gloves for all future contact.