Pet Poisoning Emergency Contacts
If your pet has ingested a potentially toxic plant, contact emergency veterinary or poison control services immediately. Do not wait for symptoms to appear.
Remove any plant material from your pet's mouth and collect a sample or photograph of the plant for identification.
ASPCA Animal Poison Control Center
Pet Poison Helpline
Common Toxic Houseplants: What to Remove from Your Home
These are among the most frequently encountered toxic houseplants. Many are widely sold by general plant retailers without prominent safety warnings. If any of these are currently in your home, we recommend replacing them with ASPCA-verified non-toxic alternatives.
Lilies
Among the most dangerous plants for cats. Even tiny amounts of pollen can cause acute kidney failure. Water from a vase containing lilies is also considered dangerous. Cats and dogs should have zero access to any lily variety.
Sago Palm
All parts are highly toxic, with seeds being the most concentrated. Can cause liver failure, seizures, and death in both cats and dogs. Requires immediate emergency veterinary treatment if ingested.
Oleander
Contains cardiac glycosides that disrupt heart function. Even dried leaves remain toxic. Can cause fatal cardiac arrhythmias. Commonly found in outdoor landscapes in warm climates; dangerous if brought indoors or accessed by pets outdoors.
Azaleas and Rhododendrons
Contains grayanotoxins that disrupt nerve and heart function. Even small amounts can cause severe vomiting, drooling, muscle weakness, and cardiac complications in both cats and dogs.
Dieffenbachia
Also called Dumb Cane. Contains insoluble calcium oxalate crystals that cause immediate intense oral pain and swelling. Can interfere with breathing and swallowing if consumed in significant quantity.
Philodendron
Causes oral irritation, excessive drooling, and difficulty swallowing due to calcium oxalate crystals. A common and popular houseplant genus, which makes this toxicity risk particularly important for pet owners to know.
Pothos
Also known as Devil's Ivy. One of the most popular trailing houseplants, and one of the most commonly encountered toxic varieties in pet-owning homes. Causes oral irritation, vomiting, and drooling.
Peace Lily
Despite its gentle name, peace lily is toxic to cats and dogs. Contains calcium oxalate crystals causing mouth irritation, drooling, and digestive upset. Not a true lily, but still poses meaningful toxicity risk.
Monstera
The widely popular Swiss Cheese Plant contains insoluble calcium oxalate crystals. Causes oral pain, drooling, and difficulty swallowing. Its dramatic foliage has made it a design staple, making this toxicity risk especially relevant for households with pets.
Snake Plant
Frequently marketed for its low-maintenance care and air-purifying qualities. Contains saponins that cause nausea, vomiting, and diarrhea in cats and dogs. A popular choice that must be avoided in pet households.
Aloe Vera
The latex component in aloe leaves causes gastrointestinal upset, lethargy, and changes in urine color in dogs and cats. While beneficial for human topical use, aloe is not appropriate for households with pets who may chew on plant foliage.
ZZ Plant
A popular low-light, low-maintenance plant that contains calcium oxalate crystals. Can cause stomach upset and skin or mucous membrane irritation in cats and dogs. Often recommended for beginners, making its toxicity important to flag.
Recognizing Plant Poisoning Symptoms
Early symptom recognition can be critical. Contact your veterinarian immediately if you observe any of the following after a pet has accessed a plant. Do not wait to see if symptoms resolve on their own.
Immediate Symptoms (0 to 2 Hours)
- Excessive drooling or salivation
- Pawing at mouth or rubbing the face
- Visible swelling of mouth, tongue, or lips
- Difficulty swallowing
- Vomiting or repeated retching
- Sudden loss of appetite
Gastrointestinal Symptoms
- Nausea and repeated vomiting
- Diarrhea, potentially with blood
- Abdominal pain or bloating
- Sudden disinterest in food
- Excessive thirst
- Changes in urination frequency or color
Neurological Symptoms
- Unusual lethargy or weakness
- Depression or unresponsiveness
- Muscle tremors or seizures
- Loss of coordination or stumbling
- Confusion or disorientation
- Uncharacteristic behavioral changes
Emergency Warning Signs
- Labored or rapid breathing
- Irregular heartbeat or heart palpitations
- Collapse or inability to stand
- Loss of consciousness
- Severe dehydration
- Signs of organ distress
Prevention: Protecting Your Pets from Toxic Plants
- Research every plant using the official ASPCA Animal Poison Control Center database before bringing it home, regardless of what the retailer tells you
- Verify by scientific name, not common name, since common names are often shared by multiple species with different toxicity profiles
- Even with ASPCA-verified non-toxic plants, discourage pets from eating plant material to avoid mild digestive upset
- Remove fallen leaves, petals, and berries from floors immediately, particularly in households with cats who may bat plants down from shelves
- Never assume a plant is safe because it is widely sold or popular; many of the most toxic houseplants are bestsellers at general retailers
- Be cautious with fresh-cut bouquets and floral arrangements, which frequently include toxic varieties such as lilies
- Keep the ASPCA Poison Control number (888-426-4435) saved in your phone before you ever need it
- If you currently have toxic plants, consider replacing them with ASPCA-verified non-toxic alternatives rather than attempting to manage pet access
- Photograph all plants in your home for quick identification in the event of an emergency
Your Entire Home Can Be Beautiful and Safe
There is a stunning ASPCA-verified non-toxic alternative for every toxic plant listed on this page. Spider plants trail like pothos. Parlor palms make the same dramatic statement as monstera. Our 150+ variety collection has been entirely curated so you never have to make a choice between beautiful plants and a safe home for your pets.
Browse ASPCA-Verified Non-Toxic PlantsFrequently Asked Questions
Sources and Research
This guide was compiled from authoritative veterinary and toxicological sources. We encourage all pet owners to consult these resources directly.
1. ASPCA Animal Poison Control Center
"Plants Non-Toxic to Dogs" and "Plants Toxic to Dogs" databases.
aspca.org/pet-care/animal-poison-control/dogs-plant-list
2. ASPCA Animal Poison Control Center
"Plants Non-Toxic to Cats" and "Plants Toxic to Cats" databases.
aspca.org/pet-care/animal-poison-control/cats-plant-list
3. Pet Poison Helpline
"Poisonous Plants for Dogs and Cats" toxicity database.
petpoisonhelpline.com/poisons
4. Merck Veterinary Manual
"Plants Poisonous to Animals" veterinary toxicology reference.
merckvetmanual.com/toxicology/poisonous-plants
5. American Veterinary Medical Association
"Household Hazards for Pets" professional guidance resource.
avma.org/resources/pet-owners/petcare/household-hazards