Is English Ivy Toxic to Dogs? Signs and What to Do

Name: Is English Ivy Toxic to Dogs? Signs and What to Do
Creator: Dr. Zubair Khalid

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-10-03

Is English ivy toxic to dogs? Yes. True English ivy (Hedera helix) is toxic to dogs, cats, and horses, and the leaves are the most dangerous part of the plant [1]. If your dog chews or eats this common climbing vine, expect stomach upset, and call your veterinarian or a poison control hotline for guidance.

This article is educational and is not a substitute for veterinary diagnosis or treatment.

Quick Answer

English ivy is toxic to dogs because of compounds called triterpenoid saponins, specifically hederagenin [1].
The foliage is more toxic than the berries, so a dog chewing leaves is the more common and more serious exposure [1].
Typical signs include vomiting, abdominal pain, drooling, and diarrhea [1].
Call your veterinarian, the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 right away if your dog ate ivy.
Do not make your dog vomit unless a veterinarian tells you to.

Is English Ivy Poisonous to Dogs?

English ivy is listed as toxic to dogs by the ASPCA Animal Poison Control Center [1]. The plant goes by many names, including branching ivy, glacier ivy, needlepoint ivy, sweetheart ivy, and California ivy, and all of these refer to the same species, Hedera helix [1]. Hahn's self branching English ivy is the same plant and carries the same toxicity warning [2].

This matters because English ivy is everywhere in the United States. It climbs fences, covers brick walls, spills over planters, and grows as a ground cover in shady yards. Many dog owners do not realize the vine their dog brushes past on every walk is a problem if chewed.

Which Parts Are Toxic?

The foliage is more toxic than the berries [1]. That is worth repeating because many pet owners assume berries are the dangerous part of a plant. With English ivy, the leaves and stems carry the higher concentration of the toxic principle, so a dog that nibbles foliage is at greater risk than one that eats a berry or two [1].

That said, berries are not safe. They still contain the same toxic compounds, just at lower levels [1]. Do not let your dog snack on any part of the plant.

Is Ivy Harmful to Dogs in General?

"Ivy" is a loose word. It covers dozens of unrelated plants that happen to climb or trail. Some are toxic, some are not, and the name on the tag does not always tell you which one you have.

English ivy is a confirmed toxic plant for dogs [1]. Other plants called ivy may have completely different chemistry. This is why identifying the exact plant matters so much when you call for help. A photo of the leaf, the pot label, or the plant tag gives your veterinarian or the poison hotline something concrete to work with.

Indoor plant poisonings are a real and growing problem for pets, partly because dogs and cats spend so much time inside with houseplants [3]. English ivy is a popular houseplant and a popular outdoor vine, so exposures happen in both settings.

Is Swedish Ivy Toxic to Dogs?

No. Swedish ivy (Plectranthus species) is a different plant from true English ivy and is not the same toxic risk. The confusion comes from the shared common name, not from shared biology.

This distinction matters because owners sometimes panic after reading that "ivy is poisonous" when their dog actually chewed a Swedish ivy houseplant, or they relax because they think all ivy is harmless when their dog actually chewed English ivy. The common name is unreliable. The scientific name is what counts.

If you are not sure which plant your dog got into, treat it as a possible exposure and call for advice. It is far better to make a phone call than to wait and watch.

The Toxic Principle and What It Does

The toxic principle in English ivy is a group of triterpenoid saponins, with hederagenin named as the key compound [1]. Saponins are natural plant chemicals that foam when mixed with water, which is where the name comes from. In the body, they irritate the lining of the mouth, stomach, and intestines.

That irritation is what drives the signs you see. The gut responds by trying to expel the irritant, which shows up as vomiting and diarrhea. Drooling reflects irritation in the mouth and throat. Abdominal pain reflects the inflamed stomach and intestinal lining [1].

Most English ivy exposures in dogs are irritating instead of life threatening. The amount eaten, the dog's size, and how much was chewed all affect how sick the dog gets. A small dog that eats several leaves can look worse than a large dog that eats one.

For context on how plant toxins are studied in animals, researchers have looked at ivy leaf extract as a feed additive and found it safe up to certain levels in complete feed for dogs and cats [4]. That finding applies to a controlled, measured additive in manufactured feed, not to a dog grazing on a backyard vine. Do not read it as permission to let your dog chew ivy.

Signs of English Ivy Poisoning in Dogs

The classic signs are vomiting, abdominal pain, hypersalivation (heavy drooling), and diarrhea [1]. You may see one of these or several together.

What the Timeline Usually Looks Like

Signs typically appear within a few hours of ingestion. The mouth and stomach irritation starts soon after the plant is chewed, so drooling and the first episode of vomiting often come first. Diarrhea may follow as the irritant moves through the gut.

Some dogs show only mild drooling and one episode of vomiting. Others have repeated vomiting, obvious belly pain (they may guard their abdomen or stand hunched), and watery diarrhea. The severity depends on how much was eaten and how sensitive your dog is.

If your dog ate ivy and is showing no signs at all, that is good news but not a reason to skip the phone call. Signs can take a few hours to appear, and a veterinarian can help you decide whether to monitor at home or bring the dog in.

Are English Ivy Berries Poisonous to Dogs?

Yes, the berries are poisonous to dogs, though the foliage is more toxic [1]. Berries are often more tempting than leaves because they are small and round, and they may drop onto the ground where a dog can hoover them up. If your dog ate berries from an English ivy plant, call for advice just as you would for leaves.

What to Do Right Now

If you think your dog ate English ivy, act calmly and quickly.

Move your dog away from the plant. Remove any plant material from the mouth if you can do so safely without getting bitten.
Save a sample. Put a leaf, stem, or berry in a sealed bag. Identification helps your veterinarian a great deal.
Call for help. Reach your veterinarian, the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661.
Do not induce vomiting unless a veterinarian tells you to. Making a dog vomit when it should not can cause harm, and it is not the right move for every plant exposure.
Do not give food, milk, oil, or home remedies to "soak up" the toxin. These do not help and can complicate treatment.

When you call, have this ready: your dog's weight, the estimated amount eaten, the time it happened, and any signs you have seen. If you have a photo of the plant, even better.

For a broader look at what to do after any plant exposure, see Dog Ate Toxic Plant. If you are trying to sort out which plants in your yard are a risk, Plants Poisonous To Dogs is a good starting point.

How Veterinarians Treat English Ivy Poisoning

Treatment is supportive and aimed at the signs. There is no antidote for triterpenoid saponins, so the goal is to control vomiting and diarrhea, ease gut irritation, and keep your dog hydrated.

Your veterinarian may give anti-nausea medication, fluids under the skin or into a vein if your dog is dehydrated, and a stomach protectant. If the exposure was recent and the amount was large, they may discuss decontamination, but that decision is theirs to make based on your dog's situation. The dose of any medication is calculated from your dog's weight and health, so never give human medications at home without veterinary direction.

Blood work may be recommended if your dog is very sick, has ongoing vomiting, or has other health problems. Most dogs with mild English ivy exposure do not need extensive testing.

Outlook After Eating English Ivy

Most dogs recover well with supportive care. The toxic compounds in English ivy cause irritation instead of organ damage, so once the plant material clears the gut, signs usually settle.

Dogs that ate a large amount, small dogs, and dogs with pre-existing health problems may need more intensive care. Severe or prolonged vomiting and diarrhea can lead to dehydration, which is the main complication to watch for.

If your dog's signs are not improving within a day of treatment, or if they worsen, go back to your veterinarian. Ongoing vomiting after a plant exposure deserves a recheck.

Prevention and Safer Alternatives

The simplest prevention is removal. If you have English ivy in your yard or home and your dog chews plants, take it out or fence it off. Bag the cuttings and dispose of them where your dog cannot reach them.

Supervise your dog outdoors, especially in yards with mature ivy growth. Ground cover is easy for dogs to root through, and the low leaves are exactly at nose and mouth level.

If you want a trailing houseplant that is not a known dog toxin, ask your veterinarian or a knowledgeable nursery staff member for suggestions. Swedish ivy is a different plant from English ivy, but confirm the scientific name before you bring any plant home.

Keep the poison control numbers saved in your phone. The ASPCA Animal Poison Control Center is at (888) 426-4435 and Pet Poison Helpline is at (855) 764-7661. Having them handy turns a panic into a phone call.

If your dog has a habit of eating things that are not food, talk with your veterinarian. That behavior has its own risks, and it is worth addressing directly. For a sense of how different toxins compare, How Much Chocolate Can Be Toxic To Dogs and List 5 Foods That Are Toxic To Dogs cover common household hazards.

Limitations and When to Contact a Veterinarian

This article covers the general picture. Your dog is an individual, and individual cases need a veterinarian who can examine the dog, ask questions, and decide on treatment.

Call your veterinarian the same day if your dog ate English ivy and has vomited once or twice, is drooling more than usual, or has soft stool. Same-day contact is also right if you are unsure how much was eaten.

Go to an emergency clinic now if your dog has repeated vomiting, cannot keep water down, has severe or bloody diarrhea, is lethargic or weak, has a painful or distended abdomen, or is collapsing. These signs suggest significant dehydration or a more serious problem.

Schedule a routine visit if your dog has a history of eating plants and you want help with prevention or behavior. That conversation is easier when your dog is well.

Frequently Asked Questions

Is English ivy toxic to dogs?

Yes. English ivy is toxic to dogs, cats, and horses, and the toxic compounds are triterpenoid saponins including hederagenin [1]. The leaves carry more of the toxin than the berries, so foliage is the bigger concern [1].

Is ivy dangerous to dogs or just mildly irritating?

For most dogs, English ivy causes stomach and mouth irritation instead of organ damage. Signs include vomiting, abdominal pain, drooling, and diarrhea [1]. A large amount, a small dog, or a dog with other health issues can get sicker and may need fluids and anti-nausea treatment.

Are English ivy berries poisonous to dogs?

Yes, the berries are poisonous, though the foliage is more toxic [1]. Berries still contain the same toxic compounds, so do not let your dog eat them. If berries were eaten, call your veterinarian or a poison hotline for advice.

Is Swedish ivy toxic to dogs?

No. Swedish ivy is a different plant from true English ivy and is not the same toxic risk. The shared common name causes confusion, so check the scientific name on the plant tag. If you cannot identify the plant, treat it as a possible exposure and call for guidance.

What should I do if my dog ate English ivy?

Call your veterinarian, the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661 right away. Do not induce vomiting unless a veterinarian tells you to. Bring a sample of the plant if you can, and watch for drooling, vomiting, belly pain, and diarrhea [1].

References

Toxic and Non-toxic Plants: English Ivy. ASPCA Animal Poison Control Center.
Toxic and Non-toxic Plants: Hahn's Self Branching English Ivy. ASPCA Animal Poison Control Center.
Indoor Companion Animal Poisoning by Plants in Europe. Frontiers in veterinary science, 2020.
Safety and efficacy of a feed additive consisting of an extract from the dried leaves of Hedera helix L. (common ivy extract) and thymol for all animal species and categories except poultry, ornamental birds and all aquatic animal species (FEFANA asbl). EFSA journal. European Food Safety Authority, 2026.