Dog with smashed plant

As a veterinary professionals you play a pivotal role in the wellbeing of your patients, but your influence extends far beyond the walls of your clinic. Educating pet owners on potential hazards in their homes is a crucial aspect of pet care. One often-overlooked danger is the presence of toxic houseplants that can harm dogs.

In this blog post, we'll explore the common houseplants that pose a threat to dogs, their toxic components, symptoms of ingestion, and your role in safeguarding pets.

Key takeaways

  • Educating pet owners on potential hazards in their homes is a crucial aspect of pet care.

  • There are many houseplants that are toxic to dogs.

  • Veterinary professionals are in a unique position to empower pet owners to create a safer environment for their dogs.

Common houseplants toxic to dogs

1. Aloe Vera

Aloe vera is celebrated for its healing properties for humans, but it's not as friendly to our four-legged friends. The plant contains compounds that can lead to gastrointestinal distress if ingested by dogs. Aloin, a bitter yellow substance found in the latex of aloe leaves, is the primary culprit.

2. Philodendron and Pothos (Devil's Ivy)

These lush green houseplants are a favorite choice for indoor decoration. However, they hide a potentially harmful secret: calcium oxalate crystals. These microscopic crystals, when chewed or swallowed by dogs, can cause oral irritation, excessive drooling, and difficulty swallowing.

3. Dieffenbachia and "Dumb Cane"

Dieffenbachia, known as "Dumb Cane" due to its numbing effect on the tongue when chewed, is a popular ornamental plant. Its attractive foliage contains calcium oxalate crystals, which, when in contact with a dog's mouth, can lead to severe oral irritation. In some cases, this can manifest as difficulty in speaking and swallowing.

4. Snake Plant (Sansevieria) and Peace Lily

These houseplants are known for their low maintenance and air-purifying qualities, making them common choices for pet owners. However, they can still cause mild toxicity in dogs, resulting in symptoms like vomiting and drooling if ingested.

5. ZZ Plant (Zamioculcas zamiifolia)

The ZZ plant is another popular indoor plant. While it's not highly toxic, it can lead to minor gastrointestinal upset if consumed by dogs. It's essential to be aware of these potential effects.

6. Dracaena Species

Dracaena species, including the corn plant and dragon tree, are beloved for their striking appearance. However, these plants contain compounds that can cause digestive issues and oral irritation in dogs when ingested. Pet owners need to recognize the signs and symptoms associated with these plants.

7. Caladium

Caladiums are known for their vibrant, multicolored leaves, making them a sought-after houseplant. However, their allure hides their high toxicity to dogs. Ingestion of caladium can lead to severe oral irritation, difficulty swallowing, and digestive issues. This plant is particularly dangerous for curious pets.

8. Oleander

Oleander, though typically an outdoor plant, can sometimes find its way indoors. It poses a significant threat to dogs, with all parts of the plant being highly toxic. Oleander ingestion can result in heart problems and severe health issues, making it crucial for veterinarians to educate pet owners about its dangers.

9. Sago Palm

The sago palm is a stunning ornamental plant, but it harbors one of the most potent plant toxins for dogs. Ingesting any part of the sago palm can lead to liver failure and, tragically, death. Veterinarians must emphasize the urgency of keeping this plant out of reach of dogs.

10. Euphorbia (Crown of Thorns)

Euphorbias, including the "Crown of Thorns" variety, contain a toxic sap that can result in gastrointestinal distress and skin irritation in dogs. Recognizing this plant and its potential effects on dogs is vital to pet safety.

Responsibility of veterinary professionals

Beyond treating pets when they fall ill, veterinary professionals are in a unique position to educate pet owners about potential hazards in their home.

1. The need for educating pet owners

Your first responsibility is to make pet owners aware of the risks associated with certain houseplants. Many well-intentioned pet owners may not realize that the beautiful foliage on their windowsill could be hazardous to their furry companions.

2. Recommending pet-safe houseplants

Offering alternatives is equally important. Suggest pet-safe houseplants that can brighten homes without posing a threat to dogs. Plants like spider plants, Boston ferns, and air plants are excellent choices that can coexist peacefully with pets.

3. Encouraging pet-proofing at home

Lastly, encourage pet owners to pet-proof their homes. This includes keeping toxic plants out of reach, regularly inspecting the home for potential hazards, and creating a safe environment that promotes both the health and happiness of their pets.

Additional resources for veterinary professionals

As veterinary professionals, your knowledge and expertise extend beyond the clinic. To empower pet owners with the information they need to safeguard their dogs from toxic houseplants, you can utilize various resources and tools.

ASPCA's toxic and non-toxic plant list

The American Society for the Prevention of Cruelty to Animals (ASPCA) maintains an extensive online database known as the "Toxic and Non-Toxic Plant List." This resource categorizes plants by their toxicity level and provides detailed information on the symptoms associated with ingestion. Encourage pet owners to use this valuable resource for quick reference.

Pet poison helpline

The Pet Poison Helpline is a 24/7 service staffed by board-certified veterinary toxicologists who can provide guidance in case of plant-related emergencies. Share the helpline's contact information with your clients, ensuring they have a lifeline when facing a potential poisoning situation.


In conclusion, as veterinary professionals, your commitment to pet safety extends far beyond the examination room. Educating pet owners about the dangers of toxic houseplants and providing guidance on preventing plant-related emergencies is a vital aspect of your role. By familiarizing yourself with common toxic plants, recommending pet-safe alternatives, and sharing valuable resources, you can empower pet owners to create a safer environment for their dogs.

Your dedication to comprehensive pet care, both inside and outside the clinic, is instrumental in ensuring the health and happiness of your patients. Together, we can make homes safer for our furry companions, one potted plant at a time.

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