By Dial A Vet Veterinary Team
Houseplants and garden beds brighten a home, yet some popular species are toxic to dogs and cats. Lilies can cause life-threatening kidney failure in cats. Sago palm seeds are highly toxic to dogs. Other plants cause mouth irritation or stomach upset. This guide is a practical shortlist, not every plant on earth. Cross-check any new plant with a poison resource before it comes inside. Related: poisonous plants for dogs and plants poisonous for rabbits.
Key takeaways
- True lilies (Lilium and Hemerocallis species) are extremely dangerous for cats. Even pollen and vase water matter.
- Sago palm (and related cycads) can cause severe liver injury in dogs.
- "Non-toxic" still does not mean a plant is a snack. Large amounts of fibre can cause stomach upset or blockage risk.
- If ingestion happens, bring a photo or cutting of the plant (in a sealed bag) to the clinic.
- Place tempting plants on high shelves only if your pet cannot jump there. Many cats can.
Higher-risk plants (examples)
- Lilies (cats): peace-breaking kidney toxin risk with Lilium/Hemerocallis. Treat any exposure as urgent.
- Sago palm / cycads (dogs especially): seeds are especially dangerous.
- Oleander, foxglove, lily of the valley: cardiac glycoside concerns.
- Pothos, philodendron, dieffenbachia: insoluble calcium oxalates causing oral pain and drooling.
- Azalea/rhododendron, autumn crocus, castor bean: systemic toxicity risks.
- Yesterday-today-tomorrow (Brunfelsia) in some regions: neurologic signs in dogs reported.
Generally safer decorative choices (still supervise)
- Spider plant, Boston fern, and many calatheas are commonly listed as lower toxicity, yet chewing can still upset stomachs.
- Areca palm and parlour palm are often preferred over sago palm.
- Herbs such as basil and rosemary are usually lower risk in culinary amounts, but essential oils concentrated from plants are a separate hazard.
Always verify the Latin name. Common names overlap and cause mix-ups (for example, "peace lily" is not a true Lilium but can still irritate mouths).
What to do if your pet chews a plant
- Remove plant material from the mouth if safe.
- Identify the plant. Photograph leaves and flowers.
- Call your veterinarian or a poison hotline with species, amount, and pet weight.
- Do not induce vomiting unless instructed.
- For cats with any true lily exposure, go to emergency care even if they seem fine.
Prevention
- Audit new bouquets (lilies in mixed bunches are a classic cat disaster).
- Hang or cabinet-protect tempting vines.
- Offer pet grass grown from verified safe seed if your animals like to graze.
- When landscaping, ask nurseries about pet-safer species lists for your climate.
FAQ
Is aloe safe?
Aloe latex can upset stomachs. Keep plants out of reach and call if a large chew occurs.
Are succulents safe?
Many cause mild GI upset; some are more problematic. Identify the exact species.
My dog ate one sago seed. Emergency?
Yes. Seek veterinary care immediately.
Talk with a vet
For toxic plant ingestion, especially lilies in cats or sago in dogs, seek emergency care. For plant-proofing advice, dialavet.com can help you plan safer greenery choices.
References
- ASPCA Animal Poison Control toxic and non-toxic plant lists.
- Pet Poison Helpline plant toxicity resources.
- Merck Veterinary Manual. Plant toxicosis overviews.
- RSPCA Australia pet-safe gardening guidance.
Disclaimer: Educational only. Plant toxicity depends on species and amount. Confirm plants with a poison professional when exposure occurs.