Dog-Friendly Plants and Toxic Plants to Avoid

If you share your home with a dog and a collection of houseplants — or a garden — knowing which plants are safe and which are toxic is not optional. Dogs explore the world with their mouths, and puppies especially will chew on anything within reach. Some common household and garden plants can cause reactions ranging from mild stomach upset to organ failure and death. This guide covers safe plants you can keep with confidence, toxic plants you should remove or avoid, and what to do if your dog eats something they should not.

Safe Indoor Plants

These popular houseplants are non-toxic to dogs. You can keep them without worry, though any plant eaten in large quantities may cause mild gastrointestinal upset simply from the unfamiliar plant material.

Spider Plant (Chlorophytum comosum) — One of the most popular and easiest houseplants to grow. Completely non-toxic to dogs, though the dangling leaves are irresistible to playful puppies.

Boston Fern (Nephrolepis exaltata) — Lush, hanging ferns that are safe for dogs. They prefer indirect light and humidity, making them great bathroom plants.

African Violet (Saintpaulia) — Compact, colorful, and entirely dog-safe. They thrive on windowsills with indirect light.

Calathea (various species) — Stunning foliage plants with patterned leaves. All Calathea species are non-toxic to dogs.

Peperomia (various species) — A large genus of compact, low-maintenance plants that are safe for dogs. Varieties include watermelon peperomia and baby rubber plant.

Parlor Palm (Chamaedorea elegans) — Elegant and easy to care for, this palm is safe for dogs and adds a tropical feel to any room.

Areca Palm (Dypsis lutescens) — Another dog-safe palm option that also acts as a natural air purifier.

Polka Dot Plant (Hypoestes phyllostachya) — Colorful spotted foliage that is non-toxic to dogs.

Cast Iron Plant (Aspidistra elatior) — Nearly indestructible and completely dog-safe. Perfect for low-light areas.

Orchids (Phalaenopsis) — Beautiful and safe for dogs. They are one of the most popular flowering houseplants for good reason.

Safe Outdoor Plants

For your garden and yard, these plants can coexist safely with a curious dog.

Sunflowers — Bright, cheerful, and non-toxic to dogs.

Roses — The flowers and leaves are non-toxic, though the thorns can cause mouth and paw injuries.

Snapdragons — Colorful garden plants that are safe for dogs.

Zinnias — Hardy, colorful annuals with no toxicity concerns.

Marigolds (Tagetes species) — Common garden marigolds are non-toxic to dogs. They may cause mild stomach upset if eaten in quantity but are not dangerous.

Basil, Rosemary, Thyme, and Sage — Common culinary herbs that are safe for dogs.

Blueberry and Strawberry bushes — Safe and even nutritious for dogs in moderation.

Petunias — Bright, popular garden flowers that are dog-safe.

Toxic Indoor Plants

These common houseplants should be removed from dog-accessible areas or avoided entirely.

Sago Palm (Cycas revoluta) — Extremely toxic. Every part of this plant is dangerous, but the seeds (nuts) are the most poisonous. Ingestion can cause liver failure and death. Even a small amount can be fatal. If you have a dog, do not keep a sago palm in your home or yard. Period.

Lilies (various species) — While lilies are primarily associated with cat toxicity (where even small exposures can cause kidney failure), some lily species can cause gastrointestinal issues in dogs. Peace lilies (Spathiphyllum) and calla lilies contain calcium oxalate crystals that cause mouth pain, drooling, and vomiting.

Dieffenbachia (Dumb Cane) — Contains calcium oxalate crystals that cause intense oral irritation, drooling, difficulty swallowing, and vomiting if chewed.

Philodendron (various species) — All philodendrons contain calcium oxalate crystals and are toxic to dogs. Symptoms include oral irritation, drooling, and vomiting.

Pothos (Epipremnum aureum) — One of the most common houseplants and unfortunately toxic to dogs. Causes oral irritation and gastrointestinal distress.

ZZ Plant (Zamioculcas zamiifolia) — Contains calcium oxalate crystals. Causes mouth irritation and stomach upset if chewed.

Aloe Vera — While aloe gel is used medicinally for humans, the plant contains saponins and anthraquinones that can cause vomiting, diarrhea, and lethargy in dogs.

Jade Plant (Crassula ovata) — Toxic to dogs, causing vomiting, depression, and incoordination.

Snake Plant (Sansevieria) — Contains saponins that cause nausea, vomiting, and diarrhea if ingested.

Toxic Outdoor and Garden Plants

Azaleas and Rhododendrons — Highly toxic. All parts of the plant contain grayanotoxins that can cause vomiting, diarrhea, weakness, cardiac failure, and death.

Oleander — Extremely toxic. Even small amounts can cause serious cardiac effects. All parts of the plant are dangerous, including the water in a vase holding oleander flowers.

Tulips and Hyacinths — The bulbs are the most toxic part. Ingestion causes intense gastrointestinal irritation, drooling, and central nervous system depression.

Daffodils (Narcissus) — The bulbs contain lycorine, which causes vomiting, diarrhea, abdominal pain, and potentially cardiac arrhythmias.

Autumn Crocus (Colchicum autumnale) — Highly toxic. Contains colchicine, which can cause severe gastrointestinal distress, organ damage, and death.

Foxglove (Digitalis) — Contains cardiac glycosides that can cause fatal heart rhythm disturbances.

Yew (Taxus) — Nearly all parts of the yew are toxic and can cause sudden death from cardiac arrest.

Castor Bean (Ricinus communis) — Contains ricin, one of the most potent naturally occurring toxins. Extremely dangerous.

Mushrooms (wild) — While most yard mushrooms are non-toxic, some wild mushrooms are lethal. Because identifying toxic mushrooms is difficult even for experts, treat all wild mushrooms as potentially dangerous and remove them from your yard promptly.

Symptoms of Plant Poisoning

The symptoms your dog exhibits depend on the specific plant and the amount consumed. Watch for drooling or excessive salivation, vomiting, diarrhea (sometimes bloody), loss of appetite, lethargy or weakness, tremors or seizures, difficulty breathing, swollen mouth, tongue, or throat, changes in heart rate, and collapse.

Mild exposures to plants containing calcium oxalate crystals (pothos, philodendron, dieffenbachia) typically cause mouth pain and drooling that resolves within a few hours. Exposures to plants with systemic toxins (sago palm, oleander, autumn crocus) can be life-threatening and require immediate veterinary intervention.

Emergency Steps

If you suspect your dog has eaten a toxic plant, take these steps immediately.

Identify the plant. If possible, take a photo or bring a sample to the veterinarian. Knowing what your dog ate allows the vet to provide targeted treatment.

Call your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435. The ASPCA hotline is available 24/7 and charges a ~$75 consultation fee. They can advise you on whether the exposure is serious and what to do next.

Do not induce vomiting unless specifically instructed to by a veterinarian or poison control. Some plant toxins cause additional damage coming back up, and vomiting is contraindicated in certain situations.

Monitor your dog for symptoms and be prepared to transport them to an emergency clinic if symptoms develop or worsen.

Treatment costs for plant poisoning vary widely. Mild cases managed with observation and supportive care may cost ~$100 to ~$300. Severe cases requiring hospitalization, IV fluids, cardiac monitoring, or liver support can cost ~$1,000 to ~$5,000 or more. Having a first aid kit and knowing your nearest emergency veterinary clinic’s location is essential preparation.

Prevention

The simplest approach is to only keep plants you have verified are non-toxic. Audit your home and yard against the ASPCA’s comprehensive toxic plant database (aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants). Place any questionable plants out of reach — though remember that a determined dog can reach shelves, counters, and hanging pots.

For puppies in the chewing phase, consider removing all plants from accessible areas temporarily. As your puppy matures and learns basic obedience, including a reliable “leave it” command, you can reintroduce dog-safe plants to your home. Breeds like Labrador Retrievers and Beagles are particularly mouth-oriented and may need extra management around plants, while breeds like Poodles and Border Collies tend to be less indiscriminate chewers.

Key Takeaways

Many common household and garden plants are toxic to dogs; verify safety before adding plants.
Lilies, sago palms, oleander, and azaleas are among the most dangerous plants for dogs.
The ASPCA Toxic Plant Database is the definitive resource for plant safety verification.
Remove all toxic plants from accessible areas, especially during the puppy chewing phase.
Dog-safe alternatives exist for nearly every toxic plant; substitution is the safest approach.

Next Steps

Audit your home and yard plants against the ASPCA toxic plant database. Replace toxic plants with safe alternatives listed in this guide. For broader home safety, see our dog-proofing checklist.