Many common houseplants, flowers, garden plants, and bouquets can be dangerous for cats. Some cause mild mouth or stomach irritation, while others, especially true lilies, can become a medical emergency after even small exposure.
Use this guide to identify high-risk plants, understand warning symptoms, and know what to do if your cat chewed, licked, brushed against, or drank water from a plant.
Do not wait for symptoms if your cat was exposed to true lilies, sago palm, oleander, foxglove, autumn crocus, cyclamen, daffodil bulbs, tulip bulbs, or an unknown plant. Move your cat away from the plant, save a photo or sample for identification, note the time and amount of exposure, and contact your veterinarian or a pet poison helpline immediately.
Plants are one of the most important cat safety categories because cats may chew leaves, lick pollen, drink vase water, or groom plant residue from their fur.
Lilies are emergency-level
True lilies can cause acute kidney failure in cats if untreated. Early signs may include salivation, anorexia, lethargy, and vomiting.
Exposure is not always obvious
Cats can be exposed by chewing leaves, licking pollen, drinking vase water, touching sap, or grooming residue from fur.
Fast action matters
For dangerous plants, early veterinary care can change the outcome. Delayed treatment for lily ingestion is associated with poor prognosis.
Most dangerous plants for cats
These plants should be treated as high-priority risks for cat households.
True lilies
Emergency
True lilies including Easter lilies, tiger lilies, Asiatic lilies, Oriental lilies, Stargazer lilies, and daylilies are among the most dangerous plants for cats. Exposure can involve chewing leaves, licking pollen, drinking vase water, or contacting plant material.
VomitingDroolingLoss of appetiteLethargyIncreased thirst
If your cat had any possible exposure to a true lily, contact a veterinarian or poison helpline immediately. Do not wait for symptoms.Full guide →
Sago palm
Emergency
Sago palm is highly dangerous for cats and dogs. Seeds are especially toxic, but all parts should be avoided. Exposure may lead to severe vomiting, liver injury, bleeding problems, collapse, or death.
VomitingDiarrheaDroolingLethargyYellow gums
Treat any sago palm exposure as urgent. Contact a veterinarian or poison helpline immediately and bring a plant photo if possible.Full guide →
Oleander
Emergency
Oleander contains cardiac glycosides that can affect the heart. All parts of the plant are dangerous, including leaves, flowers, stems, and dried plant material.
Contact a veterinarian if your cat chewed a daffodil bulb or ate more than a tiny amount.Full guide →
Tulips
Toxic
Tulips can irritate the mouth and stomach. The bulb is usually the most concerning part, but leaves and flowers can also cause symptoms.
DroolingMouth irritationVomitingDiarrheaLoss of appetite
If your cat chewed a tulip bulb or shows symptoms, contact your veterinarian.Full guide →
Aloe vera
Toxic
Aloe vera is a common houseplant that can cause vomiting, diarrhea, lethargy, and digestive upset in cats. The gel may seem harmless to people, but the plant is not a good choice for cat households.
VomitingDiarrheaLethargyLoss of appetiteDrooling
Move the plant away, estimate the amount chewed, and contact a veterinarian if symptoms occur or the amount is unknown.Full guide →
Pothos
Toxic / Caution
Pothos contains insoluble calcium oxalates that can irritate the mouth, tongue, throat, and stomach. It is usually more irritating than systemically poisonous, but symptoms can be uncomfortable.
DroolingPawing at mouthMouth irritationVomitingTrouble swallowing
Remove plant access and contact a veterinarian if your cat shows mouth pain, repeated vomiting, or trouble swallowing.Full guide →
Peace lily
Toxic / Caution
Peace lily is not the same as a true lily, but it can still irritate a cat's mouth and stomach because it contains insoluble calcium oxalates.
DroolingMouth irritationPawing at mouthVomitingTrouble swallowing
Prevent further chewing and contact your vet if symptoms are significant.Full guide →
Toxic plant list by risk level
A quick reference. A plant's final risk depends on plant species, part eaten, amount, cat size, health status, and whether symptoms are present.
Cats do not need to eat a whole plant to be exposed. Depending on the plant, risk can come from leaves, petals, stems, bulbs, pollen, sap, seeds, soil additives, or water from a vase.
Chewing leaves or petals
This is the most obvious exposure, but even a few bites can matter for high-risk plants.
Licking pollen
Pollen can stick to fur, whiskers, paws, or furniture. Cats may ingest it later while grooming.
Drinking vase water
Some cut flowers can contaminate vase water. This is especially concerning with lilies.
Digging in soil
Soil may contain fertilizer, mold, pesticides, or plant parts such as bulbs and roots.
Grooming residue
Plant sap, pollen, or topical products on fur can become ingestion exposure.
Eating bulbs or seeds
Bulbs and seeds are often more concentrated and may be higher risk than leaves or flowers.
What to do if your cat ate or chewed a plant
If your cat chewed a toxic plant or an unknown plant, act quickly. Do not wait for severe symptoms if the plant may be high risk.
1
Move your cat away from the plant
Remove the plant, bouquet, vase, fallen leaves, soil, and plant water so your cat cannot continue exposure.
2
Identify the plant
Take clear photos of the leaves, flowers, stems, bulbs, label, or plant tag. If safe, save a small sample in a bag for identification.
3
Check the exposure type
Note whether your cat chewed leaves, ate petals, licked pollen, drank vase water, touched sap, or groomed residue from fur.
4
Estimate timing and amount
Write down when exposure happened and how much may be missing.
5
Watch for symptoms
Look for vomiting, drooling, diarrhea, mouth irritation, pawing at the mouth, lethargy, hiding, weakness, tremors, breathing trouble, collapse, seizures, or appetite changes.
6
Contact a veterinarian or poison helpline
Call immediately for lilies, sago palm, oleander, foxglove, autumn crocus, daffodil or tulip bulbs, unknown plants, or any symptoms.
Do not induce vomiting, give home remedies, or aggressively bathe your cat unless a veterinarian or poison-control professional tells you to.
If you want plants in a cat household, choose lower-risk options and still place them carefully. Even non-toxic plants can cause vomiting if a cat eats too much.
Instead of lilies
Choose orchids, gerbera daisies, or roses without thorn access.
Instead of sago palm
Choose parlor palm, areca palm, or other lower-risk indoor palms.
Instead of pothos or philodendron
Choose spider plant, prayer plant, calathea, or peperomia.
Instead of risky bouquets
Ask for cat-safe flower arrangements and avoid any true lilies.
Instead of random grass
Grow cat grass, wheatgrass, oat grass, or barley grass for supervised chewing.
Instead of scented plant products
Use pet-safe enrichment rather than fragrant plant oils or unknown botanical sprays.
Most searched toxic plant guides for cats
1
Are lilies safe for cats?
True lilies are an emergency risk for cats and can cause kidney failure.
Emergency→
2
Is aloe vera safe for cats?
Aloe vera is toxic to cats and can cause vomiting, diarrhea, and lethargy.
Toxic→
3
Is lavender safe for cats?
Lavender plant and lavender oil have different risks; concentrated oil is more concerning.
Toxic→
4
Is eucalyptus safe for cats?
Eucalyptus plant and oil can be risky for cats, especially with chewing or diffuser use.
Toxic→
5
Is pothos safe for cats?
Pothos can cause painful mouth irritation, drooling, and vomiting.
Caution→
6
Is peace lily safe for cats?
Peace lily is not a true lily but can still cause mouth and stomach irritation.
Caution→
7
Is snake plant safe for cats?
Snake plant can cause digestive upset and should be kept away from cats that chew plants.
Caution→
8
Is tulip safe for cats?
Tulips are toxic to cats, and the bulb is especially concerning.
Toxic→
9
Is sago palm safe for cats?
Sago palm is an emergency-level plant toxin for cats.
Emergency→
10
Is monstera safe for cats?
Monstera can irritate the mouth and throat if chewed.
Caution→
How we rate plant safety for cats
Each plant guide uses a practical safety rating to help you understand whether a plant is generally safe, cautionary, toxic, or urgent.
Generally safe
Commonly considered lower risk for many cats, though chewing large amounts may still cause stomach upset.
Caution
May cause mild to moderate irritation or digestive signs, or risk depends heavily on amount, plant part, and cat health.
Toxic
Can harm cats and should be kept away. Known chewing or ingestion may require veterinary guidance.
Emergency
Known or suspected exposure may require urgent help, especially for lilies, sago palm, oleander, foxglove, autumn crocus, or unknown plants with symptoms.
Frequently asked questions
Some of the most dangerous plants for cats include true lilies, daylilies, sago palm, oleander, foxglove, autumn crocus, lily of the valley, castor bean, yew, daffodil bulbs, tulip bulbs, azaleas, and rhododendrons.
True lilies can cause acute kidney failure in cats if untreated. Cats may be exposed by chewing leaves, licking pollen, drinking vase water, or grooming pollen from fur. Any possible lily exposure should be treated as urgent.
Move your cat away from the plant, save a photo or sample for identification, note the time and amount, and contact a veterinarian or poison helpline. Do not wait for symptoms if the plant is a lily, sago palm, oleander, foxglove, autumn crocus, or unknown high-risk plant.
Yes. Pollen can stick to fur or paws and be swallowed later during grooming. This is especially concerning with true lilies, where pollen exposure can be part of a serious poisoning risk.
True lilies and daylilies are the major emergency concern for cats. Plants with "lily" in the name, such as peace lily or calla lily, may cause mouth irritation but are not the same kidney-failure risk as true lilies. If you are unsure which plant you have, treat it seriously and contact a veterinarian.
Pothos and peace lily usually cause irritation from insoluble calcium oxalates rather than the same kidney-failure risk as true lilies. They can still cause drooling, mouth pain, vomiting, and trouble swallowing, so they should be kept away from cats.
Watch for vomiting, drooling, diarrhea, pawing at the mouth, loss of appetite, lethargy, tremors, weakness, collapse, seizures, trouble breathing, or changes in thirst and urination. Some symptoms may be delayed.
Some lower-risk houseplants include spider plant, Boston fern, areca palm, parlor palm, calathea, prayer plant, peperomia, orchids, cat grass, and catnip. Even safer plants can cause mild stomach upset if eaten in large amounts.
Do not induce vomiting unless a veterinarian or poison-control professional tells you to. Home treatment can be dangerous depending on the plant, timing, and your cat's condition.
No. This guide is educational and helps you understand possible plant risks quickly, but it cannot diagnose or treat your cat. Contact a licensed veterinarian for case-specific advice.
This toxic plants guide is written with a cautious, veterinary-referenced approach. For known plant toxins, especially lilies, sago palm, oleander, and other high-risk plants, we prioritize action-focused safety guidance over casual reassurance.
Not sure if a houseplant, bouquet, garden flower, herb, or landscaping plant is safe for your cat? Search the cat safety database before placing it within reach.
Medical disclaimer: This page provides general educational information only and is not veterinary advice. Always consult a licensed veterinarian for advice specific to your cat. In an emergency, contact your nearest emergency veterinarian, ASPCA Animal Poison Control at (888) 426-4435, or a pet poison helpline.