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.

Is Oxalis (Shamrock Plant) Toxic to Cats? Vet-Reviewed Facts & FAQ

Share

Catster_Is Oxalis Shamrock Toxic to Cats

When we mention shamrocks, you might think of clovers too, but what is the difference? Well, all shamrocks are clovers, but not all clovers are shamrocks. The clovers that pop up across your lawn are harmless little weeds, while the Oxalis (or shamrock plant as it’s also known) is generally grown indoors or in gardens. Unfortunately, these pretty little plants are poisonous to cats.

Keep reading to find out everything you’ll need to know about this species and how it can harm your cat. We’ll also examine how to identify poisoning in your pet in the unfortunate event your bored feline takes a few bites out of the shamrock plant.

divider cat paws 2 oct 2024

About the Shamrock Plant

Shamrocks are known for their delicate flowers and trifoliate leaves. To help identify them, you should know that they come under different names, such as sorrel, purple shamrock, and love plant.

Plants in the Oxalis genus contain oxalic acid and oxalate salts, which act as a self-defense mechanism against animals and pests that try to eat them. Oxalic acid can occur in a plant either in a soluble or insoluble form, and shamrocks contain soluble oxalate crystals, which is the more harmful of the two options.

It can cause hypocalcemia, which is a drop in the body’s calcium levels, and kidney damage. Your cat could also suffer gastrointestinal irritation as the soluble oxalate crystals move through their tract.

Thankfully, the shamrock plant has a particularly bitter taste, which will often deter your cat from ingesting large quantities. However, it’s vital to know which signs you should look out for in case your cat eats the leaves.

divider cat paws 2 oct 2024

Signs & Treatment

cat with intravenous infusion drip in vet clinic
Image Credit: Yekatseryna Netuk, Shutterstock

The signs your cat exhibits will depend on how much of the plant has been ingested and how healthy they are. Cats with kidney problems, for example, are at an increased risk of severe and potentially fatal side effects. Most cats will not usually ingest too much of the plant, thanks to the bitter taste, so their signs may only be mild.

Signs to be on the lookout for are:
  • Drooling
  • Lack of appetite
  • Lethargy
  • Bloody urine
  • Changes in thirst and urination
  • Diarrhea
  • Tremors
  • Vomiting
  • Weakness

Contact your vet immediately if you catch your feline eating a shamrock plant. While it is rarely fatal, it’s still a good idea to get professional advice regarding Oxalis poisoning.

If you take your cat to the vet before it vomits, it may induce vomiting to get the plant out of your cat’s system. They may also administer medication that will bind with the harmful compounds in your cat’s system to make them less dangerous.

How to Avoid Shamrock Poisoning

The best way to avoid shamrock poisoning is to remove it from your house or garden. Of course, it’s not always within your control. If you have an outdoor cat, they may come into contact with Oxalis away from your property. Thankfully, as we said, the oxalates in the plant give it a nasty bitter flavor that will probably deter your pet.

If you already have a plant in your home, keep it somewhere your cat can’t get to, like on a high shelf or in a secure room your cat cannot access.

We also recommend, regardless of the plant’s species, emptying the water that accumulates in your plant’s catch basins after they’ve been watered to prevent your cat from drinking it. If you’re unsure about adding a new plant to your home, you can always ask your vet for advice or visit the ASPCA’s toxic and non-toxic plant list.

dedicated plant room to keep away from cats
Image Credit: Unsplash

divider cat paws 2 oct 2024

Conclusion

The relationships you have with your cat and plants can be a tricky road to navigate. No matter the species, even a non-toxic houseplant can give your cat a sore tummy if it consumes too much, and the thought of a plant you’ve brought home hurting your feline friend is horrifying.

This doesn’t mean you remove all your plants. If you research your houseplants before buying them and cat-proof your non-toxic varieties, your feline can live safely with your flora.


Featured Image Credit by: Olena758, Pixabay

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

When a Cat Becomes a Water Fountain – Why Cats Vomit After Drinking

Seeing a cat drink water and then promptly bring it back up can be confusing. Sometimes the explanation is fairly simple, particularly if...

Chatting About Sleeping Positions, Loafing & Cats in Tubes | Chatty Cattys, Episode 33

In this episode of Catster’s Chatty Cattys podcast, Dr. Karyn and Nicole dive deep into the fascinating world of feline sleep behaviors. From...

The Bite Stuff: The Truth Behind a Cat’s Sudden Nip

A cat bite that seems to come out of nowhere is one of the more confusing things a cat owner deals with. Everything...

Your Cat’s Purr Proves They’re One of a Kind

There are few sounds more comforting to a cat parent than the familiar rumble of a purring cat. You probably know your own...

More related

Can Cats Sense Evil in a Person? Can They Tell if Someone is Bad?

We cannot know if cats can sense evil in a person. After all, defining “evil” from a scientific perspective is impossible. Therefore, we...

Will a Cat Ear Hematoma Go Away on Its Own? Vet-Reviewed Facts & FAQ

An ear hematoma is a blood-filled swelling in the ear flap, also known as a pinna. Most ear hematomas are a result of...

Are Bengal Cats Illegal in Some States? 2026 Update

Bengals are the hottest cat on the block right now, and everyone is trying to get their little slice of the wild to...

Can Cats Eat Jackfruit? Vet Reviewed Risks & Alternatives

The tropical fruit known as a jackfruit has quite a sweet taste to it, which is why your little buddy might be bugging...

Keep reading

Do Senior Cats & Kittens Get Along? Vet-Approved Introduction Guide & Tips

Introducing a senior cat to a new kitten can be tricky. Differences in ages, energy levels, and physical conditions can create tension. But it doesn’t mean that your two cats will dislike each other forever. Introducing your cats to one...

Do Senior Cats and Kittens Get Along

How Do Professionals Cut Cat Nails? 7 Vet-Approved Useful Tips

Cat claws can shred, tear, and destroy objects in a matter of seconds. So, what do you do when you know that it’s time to give them a trim? Can you even do it at home? It can be stressful...

close up trimming cat nails

5 Best Litter Box Ramps for Senior Cats in 2026 – Reviews & Top Picks (Vet-Verified)

As cats get older, they face various challenges and may even need special tools to help them get through the day. One example is a litter box ramp that can help them enter and leave as needed. If you have...

iPrimio Cat Scratch Ramp

Can Cats Eat Scorpions? Vet Approved Facts & FAQ

Cats naturally enjoy hunting, and small creatures are their favorite targets. Most insects do not pose threats to cats, but scorpions (and other poisonous arachnids), armed with a venomous stinger, are more dangerous for cats to hunt. Cats can kill...

Can Cats Eat Scorpions

How Often Should You Change the Water in a Cat Water Fountain? Vet-Verified Facts & Care Tips

If you struggle to get your kitty to drink water, you may have purchased a cat water fountain to encourage them to stay hydrated. The constantly running water may be more appealing to your cat than a bowl of water....

Oneisall Fountain 3

How to Trim a Cat’s Nails (Who Won’t Cooperate): 12 Vet-Approved Tips

Trimming a cat’s nails can be an important part of feline maintenance. Cats use their claws for hunting, defense, and balance. While they do scratch them against abrasive surfaces like trees, fences, walls, and even scratch posts, they may still...

trimming nails of cat

What Can Cats Eat Besides Cat Food? Vet-Verified Nutrition Guide

When it comes to being a responsible cat parent, there is no worse feeling than getting home from the grocery store and unpacking everything, only to find you forgot the cat food! And that’s before your cat starts giving you...

tabby cat eating fresh food

Can Cats Eat Pistachios? Vet-Reviewed Nutritional Facts

Cats can eat some pretty crazy things, even though they are naturally obligate carnivores. If your cat has taken a shine to these delicacies, you might wonder if cats can eat pistachios. Luckily, pistachios are non-toxic to our wide-eyed kitties....

Can Cats Eat Pistachios

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.