Guide to Plants That Are Toxic to Cats
Poisons and toxins are substances that have an adverse effect on the body, even a very mild effect. Cats can be exposed by ingesting (eating) a toxic substance, inhaling (breathing) it, or absorbing it through the skin.
When a cat is poisoned, a wide range of symptoms may occur, from minor skin irritation to death. Luckily, some toxins have antidotes, which are specific medications given to counteract a specific poison (antidotes). Toxins that do not have a specific antidote are treated with supportive care through medications and supplements to correct symptoms and keep any more of the toxin from being absorbed into the system.
Poisoning in cats is less common than in dogs, as cats tend to be more particular about what they encounter. Still, even with cats, poisonings occur often.
Written by Dr. Mariella Roberts, Veterinary Surgeon, Animal Trust Vets CIC | Published October 2025 | Review date October 2028 | This advice is for UK pets only and is not a replacement for seeing a vet
Common Plants That Are Toxic to Cats
All parts of the following plants are poisonous and can cause serious stomach and intestinal upset:
Aloe
Amaryllis
Autumn Crocus
Other plants that can be toxic to cats:
Azaleas and rhododendrons have different effects on cats depending on the amount ingested. The entire plant is considered toxic, but the leaves are the most dangerous. Severe clinical signs include irregular heartbeats and seizures.
Daffodils can cause stomach or intestinal blockage, if large amounts of the bulb are ingested. They can also cause low blood pressure in cats, which can be life-threatening.
Lilies are the most common plant toxicity in cats. Deaths have been reported after ingestion of only one or two pieces of the plant. This highly toxic plant causes serious kidney disease and death.
Oleander is a plant that causes serious heart and neurological problems
Tulips can cause severe stomach upset in cats. If the bulb is ingested in large chunks, it can cause a stomach or intestinal blockage.
Signs of Poisoning in Your Cat and What to Do
Signs that might show that your cat has been poisoned include:
Twitching and fitting
Breathing difficulties
Shock or collapse
Inflammation or swelling of the skin
Depression or coma
Changes in drinking, weeing and eating
What to do if you suspect poisoning
Signs of poisoning tend to appear suddenly, so it is important to be aware. Even if you only suspect that your cat has swallowed or touched something poisonous, you must act quickly. Contact your vet immediately. Don't wait for signs of illness as by then your cat may be too sick to survive.
If you can see the poison, take your cat away from it immediately. If possible, take a sample of the poison with you to your vet appointment to help the vet choose a course of treatment.
Your vet may ask you to bring your cat in immediately or may give advice over the phone. Forcing or encouraging your cat to vomit may not be helpful and you should not try to treat your cat’s symptoms yourself.
Plants – Poisoning Prevention Tips
Identify and remove or keep out of reach any plants that are toxic to cats.
Ensure your rubbish cans have secure lids that cats can't open.
If your cat spends time outside, wipe them down with a damp cloth to remove any potential toxins.
Use cat-safe toys by ensuring your cat's toys are non-toxic and free of small parts that could be swallowed
Regularly change water, ensuring your cat has access to clean, fresh water and change it regularly to prevent contamination.