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 String of Hearts Toxic to Cats? Vet-Reviewed Houseplants Examined

Catster_Are String of Hearts Toxic to Cats

If you’re looking to add houseplants to your home, the potential options can be overwhelming. However, if your home already has a cat in residence, your choices will be limited by one important factor: whether or not the plant is safe for them. For example, the string of hearts (Ceropegia woodii) is a popular and easy-to-grow succulent, but is the string of hearts toxic to cats? Happily, the string of hearts is not toxic to cats, but it still may not be the best choice to grow in a house full of playful felines!

We’ll tell you why in this article and give you some other succulent options that are safe for your cat, plus a few you should avoid.

divider 2 cats

What Is String of Hearts?

String of hearts is a perennial, evergreen succulent native to southern Africa. It is a popular choice for those just beginning their plant parent journey because it is quite forgiving, especially if you forget to water it! In fact, string of hearts might grow better if you let it dry out a bit and the plant doesn’t mind growing in crowded pots either.

These plants can be grown indoors or outdoors in warm climates and produce beautiful foliage and colorful flowers. String of hearts plants are also natural climbers, easily trained to grow on a trellis or topiary.

If not given something to climb, the string of hearts produces long, trailing tendrils and makes a lovely hanging plant.

String of hearts houseplant
Image Credit: Creative by Nature, Shutterstock

Are String of Hearts Toxic to Cats?

String of hearts is non-toxic to cats, as well as dogs and humans. However, it’s essential to remember that even plants that aren’t toxic can cause vomiting in cats if they eat too much of them. That’s because a cat’s digestive system is meant to process animal products only, not plant material.

Remember we mentioned the long, trailing vines that the string of hearts produces? Most cats will find them irresistible to play with, especially young and active kitties. Not only could this lead to your cat eating the plant and possibly throwing up, but it could also destroy your plant.

Another possible danger is your cat knocking over and breaking the pot it’s planted in. Broken glass or ceramic could easily injure your kitty. String of hearts only requires minimal fertilization, but plant foods typically aren’t safe for cats.

divider 2 cats

Keeping Your Cat Safe

If you want to grow string of hearts even in a home with cats, consider placing it in a room that is off-limits to kitties. Those who live in warm climates could keep their plants outdoors and their cats safe inside.

Another option is to grow a different succulent without trailing vines that attract your cat’s attention. Some other succulents safe for cats include:

  • Hens and chicks
  • Chinese money plant
  • Bunny ear cactus
  • Variegated wax plant

Here are some succulents to avoid that are known to be toxic to cats:”

  • String of pearls (not to be confused with string of hearts!)
  • Mother-in-law’s tongue
  • Pencil cactus
  • Jade plant (also called money plant, lucky plant, or money tree)

Before bringing home any plant, double-check that it is safe for your cat by asking your veterinarian or consulting the ASPCA’s list of toxic and non-toxic plants.

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 2 cats

Conclusion

Growing a string of hearts in the same house with a cat isn’t impossible or unsafe, but it will take some planning and possibly closed doors! You can enjoy the benefits of life with plants and pets with just a few precautions. However, if your cat snacks on your string of hearts and gets an upset stomach, contact your vet to be safe.


Featured Image Credit: Job Narinnate, 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

150+ Nerdy Cat Names: Great Ideas for Your Geeky Cat

The term “nerd” has long been used as an insult, but in reality, a nerd is someone passionate and knowledgeable about their hobby...

11 Best Cat Scratchers of 2025 – Reviews & Top Picks

Our beloved cats scratch for all sorts of reasons, so it makes perfect sense to make sure you have at least one type...

10 Cat Inventions That You Might Not Know Exist: Must-Have Gadgets For Your Pet

Human history is strewn with groundbreaking inventions that changed the world forever: the wheel, the printing press, the steam engine, and most crucially,...

Can Cats Survive On Their Own By Hunting Wildlife? Vet-Approved Explanation

Cats are predators; even those who prefer to spend their time curled up in comfortable beds have the bodies and instincts of skilled...

More related

9 Best Ear Mite Treatment for Cats in 2025 – Reviews & Top Picks

If you’re watching your cat scratching their ears obsessively and continuously shaking their head, they might have ear mites. While they aren’t terribly...

Why Do Mother Cats (Sometimes) Eat Their Kittens? Our Vet Answers & Explains

If your female cat is expecting a litter of sweet kittens, you might be horrified to find out that mother cats sometimes eat...

Catster Photo Contest: Cats of the Week Winners (Mar 27, 2025)

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

8 Best Cat Doors (2025) – Reviews & Top Picks

Cats are naturally adventurous, independent, and fairly solitary creatures that need a fair amount of freedom and space to stay happy. While most...

Keep reading

Do Cats Like the Sound of White Noise? Vet-Reviewed Facts & FAQ

Cats are known for their finely tuned senses, including their excellent hearing. This helps them evade predators in addition to hunting prey effectively. However, due to your cat’s sensitive ears and sensitivity to loud noises, as their pet parent, you...

ginger-cat-resting-in-living-room

Can Cats Eat Pomegranate? Vet-Reviewed Facts & FAQ

One of the fun parts of owning a cat is giving them treats now and again. Though we stick with cat treats most of the time, sometimes it’s tempting to give them a bite of our food. But how healthy...

Can Cats Eat Pomegranate

How Often Do Cats Pee? Vet-Verified Facts & When to Worry

Just like people, how often cats pee each day can vary. It depends mostly on how much water they consume, their age, diet, and the environmental temperature. Cats that eat wet food may pee more than cats that eat kibble,...

cat-peeing-on-the-floor

How to Tell if a Cat Is Spayed: 4 Vet-Reviewed Signs to Look

It’s sometimes hard for new cat owners to know whether their new female feline is spayed or not. For those uninitiated into the wonders of cat ownership, spaying refers to a surgery in which your female cat’s interior sex organs...

sick cat wearing cone inside the clinic

Why Does My Cat Throw Up After Drinking Water? 5 Vet-Approved Causes

Cats vomit for various reasons. Sometimes, you’ll notice that they throw up their food soon after eating or unrelated to the feeding time. Other times, the vomit is clear or may contain bile. You may notice that your cat is...

cat-vomiting

How Long Can My Cat Stay in Their Crate? Vet Reviewed Safety Guide

Cat fanatics know too well that their beloved felines can become real monsters at night and wreak havoc in the house. This makes the idea of putting them in a crate quite tempting. However, you should be aware that keeping...

cat in cat carrier

15 Vet-Verified Reasons Your Cat Sleeps Under the Bed: With Tips to Manage Anxiety

Do you ever wonder why your cat likes to sleep under the bed? There are actually several reasons why cats like to do this. In this blog post, we will discuss the 15 most common reasons why cats like to...

Cat Sleeping

Cat Cuddles: Vet-Verified Facts About Kitty Snuggling

Is there a better feeling than cats cuddling up next to you in bed or on the couch? Since cats have a reputation for being independent and aloof, it can feel like you’ve hit the lottery when they choose to...

a-woman-hugging-her-cat_U