What is plant toxicity in dogs?
Plant toxicity in dogs occurs when a dog ingests a plant containing substances that are harmful to its body.
Although most herbs are safe, some can cause mild symptoms like vomiting and diarrhea, while others can cause serious complications affecting:
- Heart
- Liver
- Kidneys
- Nervous system (brain and nerves)
Dogs are naturally curious and often explore their environment by chewing, which increases their risk of exposure. Most dogs will chew a plant at some point in their lives.
Because some plant exposures can quickly become life-threatening, it is important to know which plants are toxic and when to seek emergency care.
Key takeaways
- Plants that are toxic to dogs can cause digestive upset or potentially fatal organ damage.
- Exposure, even in small amounts, to certain plants can be dangerous.
- Common symptoms include vomiting, diarrhea, drooling, lethargy and seizures.
- The best prevention is to remove toxic plants from your home and garden and supervise your dog outside.
What plants are toxic to dogs?
Many plants can be toxic to dogs, ranging from mild irritants to potentially fatal hazards.
While it is not possible to list all dangerous plants, here are some of the most concerning, along with their common symptoms.
Flowers and bulbs
- Daffodils and daffodils: Vomiting, drooling, diarrhea, tremors, seizures, abnormal heart rhythms, altered breathing
- Calla lily: Severe mouth irritation, drooling, vomiting, difficulty swallowing
- Foxglove: Vomiting, diarrhea, abnormal heart rhythm, weakness, collapse, convulsions, coma
- Chrysanthemums and daisies: Vomiting, diarrhea, drooling, lack of coordination, skin irritation
- Thrush: Vomiting, diarrhea, abnormal heart rhythm, weakness, collapse, convulsions, coma
- Autumn crocuses: Vomiting, diarrhea, gastrointestinal bleeding, liver and kidney damage, bone marrow suppression, difficulty breathing
- Tulips and hyacinths: Vomiting, diarrhea, drooling, gastrointestinal bleeding, abnormal heart rhythms, breathing problems, tremors
- Amaryllis: Vomiting, diarrhea, depression, drooling, tremors
Shrubs
- Oleander: Severe vomiting, diarrhea, abnormal heart rhythm, weakness, collapse, seizures, coma
- Azalea and rhododendron: Vomiting, diarrhea, drooling, weakness, heart problems, depression
- Yew: Vomiting, heart abnormalities, breathing difficulties, convulsions, sudden death
Trees
- Sago palm (also houseplant): Vomiting, diarrhea, gastrointestinal bleeding, abnormal bleeding/bruising, liver damage, coma
- Buckeye (horse chestnut): Vomiting, diarrhea, lack of coordination, depression or hyperexcitability, dilated pupils, seizures, coma
- Chinese tree: Vomiting, diarrhea, drooling, depression, weakness, convulsions
Houseplants
- Dieffenbachia (mute cane): Mouth irritation, drooling, vomiting, difficulty swallowing
- English ivy: Vomiting, diarrhea, drooling
- Mother-in-law's tongue (snake plant): Vomiting, diarrhea
- Jerusalem cherry: Vomiting, diarrhea, weakness, difficulty breathing, convulsions
- Kalanchoe: Vomiting, diarrhea, abnormal heart rhythms
How much of a plant is toxic to a dog?
The level of toxicity depends on the type of plant, but in some cases low exposure can lead to serious illness. For example, dogs can experience life-threatening effects after ingesting even a single sago palm seed.
Since toxicity varies widely, it is important not to assume that a small amount is safe.
If you think your dog has eaten a poisonous plant, contact your veterinarian or the Pet Poison Helpline® (855-764-7661) immediately for advice.
Plant Toxicity Symptoms in Dogs
Symptoms of plant toxicity in dogs most often affect the digestive system, but can involve multiple organ systems depending on the plant.
- Vomiting
- Diarrhea
- Drooling
- Difficulty swallowing
- Skin irritation
- Weakness
- Lethargy
- Collapse
- Tremors
- Seizures
- Lack of coordination
- Abnormal heart rhythms
- Breathing problems
- Liver damage
- Kidney damage
- Abnormal bleeding and bruising
- Coma
What should I do if my dog ​​ate a poisonous plant?
If your dog has eaten a poisonous plant, contact your veterinarian or the Pet Poison Helpline® (855-764-7661) immediately.
It is important to act quickly because some plant toxins can have serious and even fatal effects.
Your veterinarian or poison expert may recommend:
- Take your dog to a veterinary hospital immediately
- Monitor your dog at home with supportive care, depending on the plant and the amount ingested
Treatment recommendations vary depending on your dog's specific situation.
Important safety note
Do not attempt to induce vomiting at home unless directed to do so by a veterinarian.
Inducing vomiting inappropriately – or doing it in the wrong situation – can make your dog's condition worse or lead to additional complications.
Treatment of Plant Toxicity in Dogs
Treatment for plant toxicity in dogs depends on the type of plant ingested and the severity of your dog's symptoms.
Veterinary care may include a combination of treatments aimed at removing toxins and supporting the body.
Decontamination
- Induce vomiting (done safely under veterinary supervision)
- Gastric lavage (pumping of the stomach) in more severe cases
- Activated charcoal or similar medications to bind toxins and prevent their further absorption
Supportive care
- Intravenous fluid therapy to maintain hydration and support organ function
- Nutritional support if your dog isn't eating
Symptom management
Prognosis of Plant Toxicity in Dogs
The prognosis for plant toxicity in dogs is generally good with prompt veterinary treatment.
Most dogs make a full recovery when they receive treatment quickly. However, the results depend on:
- The type of plant ingested
- The quantity consumed
- How quickly treatment is started
In severe cases, such as ingesting highly toxic or fast-acting plants, dogs can become seriously ill before treatment can take effect.
Preventing Plant Toxicity in Dogs
Preventing exposure to toxic plants is the most effective way to protect your dog.
Key prevention strategies include:
- Eliminate toxic plants from your home and garden
- Choose plants that are safe for animals instead
- Avoid areas where dangerous plants are known to grow
- Keep your dog on a leash in unfamiliar environments
- Use a basket muzzle if your dog tends to eat plants
Taking these precautions can significantly reduce the risk of accidental poisoning.
FAQs About Poisonous Plants for Dogs
Which plants are most toxic to dogs?
Some of the most dangerous plants for dogs include sago palm, oleander, foxglove, and lily of the valley.
These plants can cause serious symptoms such as organ failure, abnormal heart rhythms, seizures, and even death if ingested.
What should I do if my dog ​​eats a toxic plant?
Contact your veterinarian or the Pet Poison Helpline® (855-764-7661) immediately.
Do not wait for symptoms to appear and do not induce vomiting unless directed to do so by a veterinarian.
How quickly do symptoms of plant poisoning appear in dogs?
Symptoms can appear within minutes or hours, depending on the plant and the amount ingested.
Some toxins act quickly, while others can cause delayed effects, making early intervention essential.
Can a small amount of a toxic plant harm my dog?
Yes, even small amounts can be dangerous.
Some plants, such as sago palm, can cause serious or even fatal toxicity from very small exposures.
