Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

What Flowers Are Dangerous to Cats? 7 Vet-Verfied Threatening Plants

Share

Gray Scottish cat in the lily flower garden

Whether celebrating a special occasion or just looking to brighten up your kitchen table, a lovely bouquet is an easy choice. However, if you’re a cat owner or gifting flowers to someone who is, you must be careful about which blooms you select.

Many popular flowers are toxic to cats, and with our feline friends prone to chewing on greenery, tragedy may not be far behind. Here are seven different flowers that are dangerous to cats.

divider 1 paws

How Are Dangerous Flowers Classified?

For this article, we’re classifying dangerous flowers by whether they appear on the ASPCA’s list of plants that are toxic to cats. The flowers found on this list cause signs ranging from gastrointestinal issues to more serious, life-threatening complications.

Since safer flowers are available, you’ll probably want to steer clear of any of these flowers. Luckily, the ASPCA also produces a list of non-toxic flowers you can safely buy or gift without worrying about the cats in your life.

divider 2 cats

The 7 Flowers Dangerous to Cats

1. Lilies

white lillies
Image Credit: Vladnik55, Shutterstock
Scientific name: Lilium
Common names: Oriental, Stargazer, Easter, Tiger, Asiatic

Lilies are first on our list because the gorgeous, fragrant flowers are among the most dangerous of all for cats. All parts of the lily are toxic to cats, even the pollen and the water in the vase they’re displayed in.

Minimal exposure to lilies puts your cat at risk of kidney failure. Play it safe and keep all lilies out of the house or garden if you have cats. If you suspect your cat has ingested any part of the Lily plant, contact your vet immediately.

Daylilies (Hemerocallis sp) can also cause severe kidney injury. Peruvian lilies, Peace lilies and Lily of the valley, are not Lilium species and don’t cause sudden kidney injury, but they can all make your cat sick and you should seek veterinary advice if your cat has ingested any of them.


2. Tulips

a field of tulips
Image Credit: Couleur, Pixabay
Scientific name: Tulipa
Common names: Tulip

Tulips are available in multiple colors and are popular spring flowers. Although they’re a common feature of gardens and often sold as cut flowers, tulips are dangerous to cats. The toxic component of tulips is called tulipalin A and B.

Several parts of the flower are dangerous to cats, but the bulbs contain the highest amount of toxin. Your cat can be poisoned by digging up old bulbs from the garden. Signs of tulip toxicity include hypersalivation, vomiting, diarrhea, and depression.


3. Hydrangea

pink hydrangeas
Image Credit: Connor Moyle, Unsplash
Scientific name: Hydrangea arborescens
Common names: Hortensia, Hills of Snow, Seven Bark

Hydrangeas can be purchased cut in bouquets and frequently found in yards. Outdoor cats can be easily exposed to these plants in many parts of the country. The leaves and flowers of hydrangea plants are the most dangerous.

The toxic element of the flower is cyanogenic glycoside. Technically, hydrangeas can cause cyanide poisoning in cats, but it is rare. If your cat eats hydrangeas, you may notice vomiting, depression, and diarrhea.


4. Daffodils

Daffodils
Image Credit: akirEVarga, Pixabay
Scientific name: Narcissus
Common names: Narcissus, Jonquil, Paper White

Another common, popular flower, the daffodil, is also quite dangerous to cats. The plants, especially the bulbs, contain several toxic alkaloids, including one called lycorine. You may notice excessive drooling, diarrhea, and vomiting if your cat eats daffodils.

Unfortunately, eating larger quantities of daffodils may cause more severe signs like seizures, tremors, decreased blood pressure, and abnormal heart rhythms. If you catch your cat digging in a flower bed or chewing on daffodils, contact your vet right away.


5. Chrysanthemum

red chrysanthemums flowers in the garden
Image Credit: Yoksel 🌿 Zok, Unsplash
Scientific name: Chrysanthemum
Common names: Daisy, mum, others

Often called simply “mums,” Chrysanthemums contain several toxic components that can harm your cat. Although generally only mildly toxic, with so many varieties available, it can be easy to expose your cat to the flowers without realizing it. The toxic compounds in mums include lactones and pyrethrins.

Pyrethrins are often used in flea and tick-preventative products for dogs, but they are also toxic to cats. Signs that your cat has eaten mums include hypersalivation, vomiting, diarrhea, and incoordination. Some mum varieties cause skin irritation and dermatitis in cats.


6. Hyacinths

potted Blooming hyacinths
Image Credit: Sabine Schoenfeld, Shutterstock
Scientific name: Hyacinthus orientalis
Common names: Hyacinth

Beautiful hyacinths are available in various colors and have a lovely fragrance. Unfortunately, the flowers contain toxic compounds similar to the dangerous alkaloids found in daffodils. If your cat eats hyacinths, you may see constant vomiting and diarrhea, possibly containing blood.

Other signs include depression and body tremors. Hyacinths are another common spring garden flower your cat may encounter or dig up the bulbs. They can even cause problems if your cat inhales pollen.


7. Oleander

pink oleanders in the field
Image Credit: ekrem, Pixabay
Scientific name: Nerium oleander
Common names: Rose-bay

Your cat will most likely only encounter this dangerous flower outdoors. Oleander is a popular ornamental garden plant highly toxic to cats and many other animals. It contains toxins called cardiac glycosides that impact the heart.

Outward signs that your cat has ingested any part of the oleander plant include drooling, belly pain, seizures, tremors, vomiting, and diarrhea. Don’t hesitate to take your cat to a vet if you suspect they’ve chewed on an oleander flower.


What Should You Do If Your Cat Eats a Dangerous Flower?

If your cat eats a dangerous flower, contact your veterinarian immediately. If you catch your cat in the act of ingestion, quickly remove any uneaten portions and call your veterinarian. Identifying the flower is important for treatment, if you are unsure what it is you can bring a sample to the vet’s office with you. You can also call the Pet Poison Helpline for guidance, and to help identify the flower.

Generally, your cat will need to be treated by a veterinarian. Specific treatments will vary based on which flower your cat eats and the clinical signs noted.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's an online service where you can talk to a vet online and get the advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content for PangoVet2 save money

divider 1 paws

Conclusion

These seven flowers are dangerous to cats but aren’t the only plants you need to worry about. Keep in mind that eating non-toxic plants can upset your cat’s stomach. In addition, cats can get sick from ingesting fertilizers or pesticides used on the flowers. If your cat frequently chews on plants, keeping your flowers safely out of reach or behind closed doors may be best.


Featured Image Credit: Sagittarius_13, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Do Cats Cause Schizophrenia? Scientists Find a Link – Here’s What It Means

Being a fierce advocate (and occasional recipient of) mental health support and awareness, the term ‘crazy’ is not one I like to fling...

One in 100 Cats Gets Diabetes – Here’s How to Catch It Early

One in every 100 cats develops diabetes.1 That’s not a rare, unlucky condition reserved for cats with obvious health problems. It’s common enough...

Dramatic Rescue Turns Into Dramatic Reunion

What started as a routine call for the RSPCA became a heroic, five-hour rescue featuring one trapped and traumatized cat, an emotional family...

Ask Dr. Paola – Help! How Do I Know if it’s Ear Mites! (May 4, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

More related

Catster Photo Contest: Cats of the Week Winners (May 29, 2025)

This Week’s Winner Silliest Most Dignified Best Action Shot Sleepiest Cutest Enter Your Cat Submit your kitty for a chance to be featured!...

Why Is My Cat Panting and Drooling? Vet-Verified Causes & Prevention

Cats are usually fastidious groomers that don’t allow a single hair to fall out of place. However, there are times when cats can...

How Do I Know When My Kitten Needs to Pee or Poop? 5 Vet-Approved Signs to Look For!

One particularity of cats is that felines’ bathroom habits are significantly different from ours. While you may have heard that some cats with...

Ask Dr. Paola – Milk, Introductions & Humping (March 3, 2025)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

Keep reading

Why Does My Cat Cry When I Leave? Vet-Verified Reasons & Solutions

While cats are often considered not to be terribly interested in people, they’re actually sensitive, loving creatures that become deeply attached to those they share their lives with. Companion cats develop bonds with their people that resemble those formed between...

Cat meowing

9 Best Cat Foods for Maine Coon in 2026: Reviews & Top Picks

Maine Coon cats are the big, handsome fluffballs of the cat world. They have great personalities; however, the Maine Coon’s coat is thick and requires upkeep. These cats are naturally large, but that doesn’t mean they should be overweight or...

maine coon cat finished eating

Are Reed Diffusers Bad for Cats? Vet-Reviewed Facts & FAQ

If you are like most people who own a cat, you want to keep your home smelling nice, but you also want to make sure your cat stays safe and healthy in the process. You might have heard of reed...

reed diffusers on the table

Why Do Cats Love Shoes? 3 Vet-Approved Reasons for This Behavior

If you’ve felt like you’ve observed your cats having a strange obsession with your shoes, it might not just be in your head. The reality is, that many cat owners have noticed this same behavior. Since it’s happening with cats...

British Short-hair Cat beside shoes

Are Tuxedo Cats Smarter Than Other Cats? Vet-Verified Facts & Info

Tuxedo cats are instantly recognizable by their distinctive black and white markings and have long been the subject of fascination among feline enthusiasts. The term doesn’t refer to a specific breed, but rather describes a color pattern found in a...

tuxedo cat resting on log

Environmental Enrichment for Cats: 12 Vet-Reviewed Tips

While indoors is the safest place for cats, it’s not always the most enriching. It’s important to remember that cats, at their very core, are wild animals. Their ancestors ruled the outdoors, hunting, exploring, and fending for themselves. While your...

Cute gray cat on a cat tree

Signs a Cat is Dying: 11 Vet-Verified Changes to Look For

It’s the moment that no cat owner wants to contemplate, but as our feline friends get older or maybe develop an illness, their deteriorating health can begin to show signs your cat is dying. As difficult as this time can...

tired or sick cat

If I Have Asthma, Can I Have a Cat? Vet-Reviewed Facts & FAQ

Asthma is a respiratory condition that affects millions of people in the United States. For people with asthma, having a cat may seem out of the question. But is it? While cats can aggravate asthma symptoms, they don’t have to....

Inhaler for asthma patient

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.