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.

Are Poppies Toxic To Cats? Vet Approved Facts & FAQ

Catster_Are Poppies Toxic to Cats

Cats are intelligent creatures that usually avoid things that can hurt them. However, sometimes curiosity gets the best of them, and if your cat decides to eat some plants, including poppies, they can harm them.

Poppies are used to make opiates (including opium and heroin), and they are very dangerous for cats. All parts of the poppy, including the stem, leaves, seeds, and flowers, can cause health issues.

No studies could be found on the toxicity in cats through accidental ingestion, but it is extrapolated from information on the effect on dogs and other animals. It is assumed that ingestion of large amounts of poppy would be toxic to cats.

divider cat faces 2 oct 2024

What Are Poppies and How Can They Affect Cats?

There are 70 species of poppy growing in temperate climates such as Europe and North America. Poppies contain opioid and alkaloid compounds such as isoquinoline and phenanthrene.

This can cause nervous system health signs such as:
  • Vomiting
  • Pupil dilation
  • Salivation
  • Collapse
  • Lack of coordination
  • Problems walking
  • Coma

These compounds are usually found in all parts of the poppy but are more concentrated in the milky “sap” found around poppy seed pods. However, your cat would likely have to ingest several poppies to cause a significant illness, and cats are generally unlikely to eat enough to cause harm. In addition, vomiting is usually one of the first signs that help remove toxins from the digestive system.

They are quite good at avoiding toxic plants, but be vigilant and avoid poppies in your home and garden, as even the seeds can cause poisoning. Seek advice from your veterinarian if your cat eats poppies, including the seeds, as signs can come on rapidly, and each cat may react differently.

Orange cat drooling
Image by: Ling_Chen, Shutterstock

How Can I Tell if My Cat Has Eaten a Poppy?

One of the first things to look for is part of the plant in your cat’s vomit. Most of the time, your cat will vomit to begin trying to clear the toxins from their system; this might be distressing for you, but looking through their vomit for any signs of the plant, including the stem, flower, or leaves, can help identify which species your cat might have eaten.

Looking for the signs of poppy toxicity, such as vomiting, lethargy, or coordination problems, can also help, particularly if you have poppies in the garden or have noticed your cats around them.

When in doubt, take a picture of your garden and take your cat to the vet. The photo can be useful to your vet if you are unsure.

What Is the Most Toxic Flower to Cats?

Lilies are usually considered the most toxic plant to cats. Even the pollen of a lily plant on a cat’s fur can be lethal after they lick it off. The petals, stamen, pollen, leaves, and stems can all cause rapid kidney failure if ingested, which can be fatal even with prompt veterinarian treatment.

Even lapping at the water a lily has been in can be toxic, so it’s better to never have lilies in the house or the garden and thoroughly wash your hands and clothes after contact with lilies.

calla lilies
Image by: Anne M Vallone, Shutterstock
The signs of Lily toxicity in cats include:

The ASPCA and petpoisonhelpline.com have useful information on many toxic plants that can be found in and around your home.

You might not always notice right away if your cat has consumed something they shouldn’t have. It is important to watch your cat’s behavior afterward to see if they are showing any symptoms of irritability or poisoning.

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 cat faces 2 oct 2024

Final thoughts

Poppies have been used to produce opiates such as morphine for thousands of years and have been instrumental in combating pain in animals and humans. Ingesting poppies, however, can be lethal for many animals, including cats and people.

Their toxicity can have different effects depending on the type of poppy eaten, what part of the poppy was ingested, and how much. If your cat shows any signs of poppy toxicity or you notice they’ve eaten a poppy, take them to the vet’s, as it’s much better to be safe than sorry.

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

How Much Space Does A Cat Need? Feline Necessities Explained

Before you bring a new pet into your home, you need to ensure you have enough space for them to be happy and...

Why Are Cats Scared of Vacuums? 5 Vet-Reviewed Reasons & Desensitization Tips

If your poor cat runs away in terror at the mere sight of the vacuum cleaner, know that you are not the only...

9 Best Stainless Steel Cat Bowls in 2025 – Reviews & Top Picks

Stainless steel products are a no-brainer in a house full of animals. This material doesn’t stain or scratch. Better yet, it’s naturally resistant...

How Rare Is a Cat With Two Different Eye Colors? Vet-Reviewed Facts

All cats are special in their own way, but cats with different eye colors (heterochromia) only have melanin in one eye. Heterochromia in...

More related

Stomatitis in Cats: Vet Reviewed Risks, Causes, Signs & Treatments

For reasons unknown, cats may develop a painful inflammatory condition in their mouth. This is called stomatitis and may be the result of...

How to Dispose of Cat Poop: 4 Hygienic & Safe Methods

We love our crazy and adorable cats, there’s no doubt about that! But one of the side effects of owning a cat is...

10 Best Cat Litter Mats of 2025 – Reviews & Top Picks

Looking for the perfect cat litter mat to keep your home clean and litter-free? Our comprehensive reviews and top picks will help you...

How to Train a Cat Not to Bite: 8 Vet-Approved Tips and Tricks

Is your cat constantly biting you? You are not alone. The behavior is typical for kittens and adult cats, but they do it...

Keep reading

4 Natural Home Remedies to Treat Cat Vomiting: Vet-Approved Methods

Caring for a cat is usually full of cute and rewarding moments, but it’s another story entirely if they experience vomiting. The underlying cause can be one of a variety of reasons, but no matter what, it’s no fun to...

sad, bored or sick cat

Why Does My Cat Have Whiskers on Their Eyebrows? Vet-Verified Facts & Functions

Though whiskers above the mouth are a standout feature in cat anatomy, whiskers in other areas are less conspicuous. In addition to the area above their mouths, cats have whiskers on their chins, forelegs, around the ears, and above the...

cat orange eyes

10 Best Flea Sprays for Cats (2025) – Reviews & Top Picks

Fleas can be irritating at the best of times, but if left untreated, they can cause discomfort and even lead to your cat developing flea allergy dermatitis. At the first sign of fleas, it’s a great idea to treat your...

Cat-with-fleas

Nom Nom Cat Food Review: Recalls, Pros, Cons & Verdict

Disclaimer: Nom Nom has discontinued its fresh cat food recipe and is no longer taking orders. Nom Nom hopes to return to providing fresh food to cats in the future when they have more readily available high-quality ingredients. We have...

Nom Nom Cat Food

How to Prevent Dental Disease in Cats: 6 Vet-Approved Care Tips 

Dogs may have a reputation for bad breath, but our feline friends are not strangers to poor oral health either. Dental issues are a common health concern for cats and their owners. In this article, you’ll find tips to help...

veterinarian checks mouth of the maine coon cat

11 Best Cat Foods in Canada in 2025 – Reviews & Top Picks

Did you know that around 50%-60% of Canadian pets are considered obese?1 Obesity is a serious health concern for cats as it increases their risk of developing potentially life-threatening conditions like cancer and heart disease.2 The good news is that...

grey cat eating food

7 Best Glucosamine for Cats of 2025 – Reviews & Top Picks

Glucosamine can relieve joint problems in humans, and it can probably do the same thing for your cat. Whether your cat has arthritis or sore joints in old age, this supplement may put some pep back in your cat’s step....

LaPerm tri-colored cat

E. Coli Infection in Cats: Vet Approved Signs, Causes & Care

E. coli, or Escherichia coli, is a bacterium that sits in most living mammals’ digestive tracts. It can be found in human and animal urine and feces. It’s usually a commensal organism, part of the normal bacterial flora of the...

sick orange cat