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 Lilacs Poisonous to Cats? Vet-Verified Facts & Info

Share

Catster_Are Lilacs Poisonous to Cats

If you love the look and smell of lilacs and tend to pick a few when out walking, you may be wondering if lilacs are poisonous to cats. You don’t have anything to worry about because the common lilac plant (Syringa vulgaris) is safe for all animals, including cats.

divider 2 cats

If you’ve heard that lilacs are poisonous to cats, you’ve probably mistaken the common lilac with the Persian lilac. This type of lilac is toxic to cats. If this flowering shrub is consumed by a cat, the cat may experience common signs of poisoning, including the following:

  • Loss of appetite
  • Drooling
  • Vomiting
  • Diarrhea
  • Lethargy
  • Pale or yellowish gums
  • Excessive thirst
  • Difficulty breathing
  • Seizures
tabby british shorthair cat vomiting on the lawn
Image Credit: Nils Jacobi, Shutterstock

The Difference Between a Common Lilac and a Persian Lilac

Now that you know that Persian lilacs are poisonous to cats, you’re probably wondering what the difference is between the two and how to identify them.

The common lilac is the most common and most familiar. This flowering shrub grows lilac-colored flowers that have a strong and pleasant fragrance. The plant grows to a height of about 20 feet.

Unlike the tall common lilac, the Persian lilac only grows about 10 feet tall. In addition to being shorter, the Persian lilac grows much smaller flowers that are about half the size of common lilacs and they’re paler in color.

If you see a short lilac tree when you’re out and about and notice the flowers are small and not as brilliantly colored as most lilacs you run across, the chances are good that you’re looking at a Persian lilac.

You are free to use this image, but we do require you to link back to Catster.com for credit

What to Do if Your Cat Eats Persian Lilac

As a cat owner, you know your pet is a curious creature that loves exploring their environment. Cats explore the world using their noses and mouths to smell and taste the things they discover.

If you suspect that your cat has eaten some Persian lilacs and notice some of the signs listed above, call your vet immediately. If possible, take a cutting from the lilac shrub your cat nibbled on.

If you have a question about your cat's health or behavior, why not Ask a Vet for Free with Catster. Our veterinary team answers reader questions and provides trusted advice to help you better understand your cat.

askavet on catster

Your vet will want to see the plant, so they know exactly what your cat ate. Your vet will ask you how much of the plant your cat consumed and how long ago it happened. They also ask you to describe any signs your cat is showing. If your vet thinks your cat is in danger, you’ll likely be asked to take your fur baby to the office for an exam and possible treatment.

cat examined by Vets
Image Credit: Kzenon, Shutterstock

Other Plants and Flowers That Are Poisonous to Cats

In addition to Persian lilacs, there are other common household plants that are poisonous to cats. Some of the most common plants that are poisonous to our feline friends include:

  • Amaryllis
  • Azaleas
  • Castor bean
  • Chrysanthemum
  • Daffodils
  • Devil’s ivy
  • English ivy
  • Hyacinth
  • Lily of the valley
  • Peace lily
  • Sago palm
  • Spanish thyme
  • Tulip
  • Yew

If you have any of these plants at home, you should consider getting rid of them to keep your cat safe or place the plants in a location that’s out of reach.

Don’t think for a second that you can train your cat to stay away from a poisonous plant because cats are curious creatures by nature. Even if your cat knows they’re not supposed to be around a certain plant, they’ll explore it when you’re not around because, well, they’re a cat!

Street-cat-in-the-spring-garden
Image Credit by: Diana Golysheva, Shutterstock

Common Houseplants That Are Safe for Cats

You can have a cat and enjoy many plants around your house. The following common plants are non-toxic to cats, making them perfectly safe.

  • African violet
  • Bamboo
  • Basil
  • Birds nest fern
  • Boston fern
  • Haworthia succulents
  • Orchid
  • Cat grass
  • Chinese money plant
  • Red prayer plant
  • Parlor palm
  • Kimberly queen fern
  • Rosemary
  • Rubber plant
  • Spider plant
  • Thyme

divider 2 cats

Conclusion

Common lilacs are non-toxic to cats, so there’s nothing to worry about if you have these beautiful, tall shrubs growing in your neighborhood. Feel free to pick a few small branches to bring indoors to beautify your home and fill it with that sweet fragrance lilacs are known for.

Just watch out for Persian lilacs that are smaller than the common type, as these are poisonous to cats. There are plenty of beautiful cat-friendly houseplants to have around your home, so explore the possibilities and enjoy the best that nature has to offer!


Featured Image Credit: Piqsels

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.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

Ask Dr. Paola – My Cat Loves Eating Grass, But It Makes Her Vomit! (June 29, 2026)

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

Learning to Speak Cat with Anthony Smith

Many cat lovers know me through Learn to Speak Cat and Cattitude – Doggonit, cartoons that explore the often mysterious, occasionally mischievous, and...

Weird Cat Behaviors That Actually Make Perfect Sense

We have been sharing our lives with cats for thousands of years, yet we still find ourselves genuinely stumped by what they get...

The Dream of Talking to Cats Just Got Closer to Becoming a Reality

If you’ve ever wished your cat could simply tell you what they wanted, you’re not alone. From the meow that wakes you before...

More related

Has Your Cat Imprinted on You? 15 Signs to Look For

Imprinting is a term that is usually used to describe when a young animal accepts another animal, person or object as its parent...

4 Totally Legal & Safe Ways to Get Your Cat High (Vet-Approved)

Cats have a powerful sense of smell to help them find prey and interact with their environment. Toys that engage this sense, such...

8 Pet-Friendly Hotels in Houston, TX (2026 Guide)

Houston is a Texan powerhouse of industry, nightlife, culture, and cuisine that you’ll never want to leave. Really, the biggest challenge you’ll face...

What Is the Cost to Remove a Cat Tooth? 2026 Price Guide

Part of caring for a pet cat is ensuring their dental health is monitored and managed as time goes on. Your veterinarian likely...

Keep reading

Why Are Cats So Curious? 7 Fascinating Insights

If you have a cat, you’ve probably noticed that they are always interested in your actions. If you open the doors, bring in the groceries, or go upstairs, your cat probably follows you to see what you are doing and...

two cats playing with toy at home

Can Cats Eat Daffodils? Vet-Approved Facts & FAQ

Since they’re a carnivore, a cat having a fascination with plants can be baffling to their owner. While eating some plants may not result in any side effects or perhaps a minor upset stomach at most, other plants are dangerous—these...

Can Cats Eat Daffodils

Can Cats Eat Guava? Vet-Approved Facts & FAQ

Guava is a popular fruit for various reasons. It’s no shocker that humans delight in and derive nutrients from this tropical fruit. But what about feline companions? Can they eat guava? And if so, do they get any nutritional reward...

Can Cats Eat Guava

Can You Spay a Pregnant Cat? Vet-Reviewed Risks & Recommendations

If you’re in a situation where you are asking this question, odds are you either have a rescue on your hands or, somehow, didn’t realize your pet wasn’t spayed—which can happen. When it comes to safety and spaying a pregnant...

pregnant cat

Can Cats Eat Pizza? Vet-Reviewed Nutrition & Safety Advice

Does your cat like to snuggle up to you on pizza night? Perhaps they’d love a little piece with melted cheese, tomato sauce, and pepperoni? Pizza is a popular food, so there is a possibility some of our cats may...

Can Cats Eat Pizza

How to Be a Good Cat Owner: 10 Vet-Reviewed Tips

There’s a big difference between having a cat and being a good pet parent. Being a good cat owner is more than just putting out food and buying your cat a bed. So, whether you have a special feline in...

white cat with the owner

Open Farm vs Fromm Cat Food: 2026 Comparison

Globally, the pet food industry has never been larger and more profitable. Because of this, cat owners are faced with choosing between an ever-expanding selection of diets for their feline friends. To help you out, we’ve written this in-depth comparison...

Open Farm VS Fromm

Can Cats Eat Rabbit? Vet-Verified Health Risks & Precautions

While we may want to think of our precious felines as nothing more than furry companions to spend our days with, they are cunning hunters who enjoy the chase and relish in their victories when they happen. Realizing this leaves...

Can Cats Eat Rabbit

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.