Pet-friendly is a commonly used term for houseplants but it does not mean the same thing for every pet or every plant. In most cases, when a plant is described as pet-friendly, it means it is considered non-toxic to cats and dogs according to reference databases such as the ASPCA Animal Poison Control Centre. It does not mean the plant is edible, that large quantities are safe, that it is safe for all animals, or that it poses zero risk in every situation. Understanding what the term actually means helps you make better decisions about which plants to keep in a home with pets.
What Pet-Friendly Usually Means in Practice
When retailers or care guides describe a plant as pet-friendly or pet-safe, they typically mean it has not been found to cause serious toxicity in cats and dogs when ingested in typical quantities. The primary reference for this is the ASPCA's list of toxic and non-toxic plants, which is the most widely cited database for pet toxicity in houseplants. Plants listed as non-toxic on that list are what most people mean when they say pet-friendly.
However, non-toxic does not mean zero consequences. Even plants classified as non-toxic can cause mild gastrointestinal upset, vomiting, or diarrhoea if ingested in significant quantities, simply because plant material is not part of a cat or dog's natural diet. Some plants listed as non-toxic may also cause topical skin irritation in sensitive animals, even if ingestion is considered safe. See our guide on whether pet-friendly plants are safe for all pets for how this applies across different species.
Common Houseplants That Are Genuinely Toxic to Pets
Several very popular houseplants are significantly toxic to cats and/or dogs and should not be accessible to pets. Lilies (all Lilium and Hemerocallis species) are severely toxic to cats and can cause fatal kidney failure even from small amounts of pollen. Dieffenbachias cause intense oral swelling and can impair swallowing. Philodendrons, Pothos, and Peace Lilies contain calcium oxalate crystals that cause oral and gastrointestinal irritation. Dracaenas are toxic to both cats and dogs. Aloe Vera, while useful medicinally for humans, is toxic to both cats and dogs when ingested.
Plants Generally Considered Safe for Cats and Dogs
Plants commonly listed as non-toxic to both cats and dogs include:
- Spider Plants (Chlorophytum comosum)
- Boston Ferns
- Calatheas (most species)
- Prayer Plants (Maranta)
- Phalaenopsis Orchids
- African Violets (Saintpaulia)
- Haworthias
- Hoyas
- Peperomias
- Cast Iron Plants (Aspidistra)
However, even these plants should not be left as free-grazing options. A cat that repeatedly eats large amounts of any plant material risks digestive upset, and some individual animals have sensitivities not reflected in general toxicity databases. See our guide on stopping cats eating plants for practical management strategies.
Pet-Friendly Does Not Cover All Animals
Most pet-friendly labelling is based on data for cats and dogs only. If you have rabbits, guinea pigs, birds, reptiles, or fish, the toxicity picture is entirely different. Many plants considered safe for cats and dogs can be harmful to small animals or birds. If you keep pets other than cats and dogs, check species-specific toxicity databases or consult a vet before assuming pet-friendly labelling is applicable.
Practical Approach to Pet Safety and Houseplants
The most sensible approach in a home with pets is a combination of strategies. Choose non-toxic species for rooms where pets roam freely, keep toxic plants in rooms pets cannot access or on high shelves, and discourage plant chewing regardless of whether a plant is technically non-toxic. Placing clay pebbles on the compost surface deters digging.
Providing cat grass redirects grazing instincts away from houseplants.
If you are unsure whether a plant is safe and your pet has ingested it, contact your vet or the Animal Poison Line (UK: 01202 509000) rather than waiting to see if symptoms develop. Time is important in toxicity cases.
Shop our pet safe houseplants and turn your home into a pet-safe jungle today.