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18 Indoor Plants That Are Poisonous to Cats

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For many, the mere presence of greenery in a home environment provides a breath of fresh air, a touch of vitality, and a sense of tranquility. Indoor plants have gained substantial popularity, and for all the right reasons. They purify the air, brighten up rooms, and can even improve your mood. However, if you are a cat owner, it's crucial to pay careful attention to the types of plants you introduce into your home. Some popular houseplants, while beneficial to us, can pose serious health threats to our feline friends. 

Here's a list of 18 indoor plants that are poisonous to cats.

Dieffenbachia (Dumb Cane)

One of the first plants you may encounter when you sign up for a carefully selected plant subscription is Dieffenbachia. A widely loved plant due to its attractive leaves, it's unfortunately toxic to cats. Ingestion can cause oral irritation, drooling, nausea, vomiting, and difficulty swallowing.

Aloe Vera

A plant renowned for its myriad healing properties, Aloe Vera, is a common sight in many households. Yet, to cats, it can cause vomiting, diarrhea, tremors, anorexia, and depression.

Sago Palm

As an indoor plant enthusiast, you may be drawn towards the Sago Palm for its enticing tropical appeal and strikingly robust appearance. However, for pet owners, this plant should be avoided at all costs. The Sago Palm is extremely toxic to cats. Every part of the plant, from the glossy leaves to the textured trunk, contains a toxic agent called cycasin. If a cat ingests any part of the Sago Palm, particularly the seeds, they could face serious health issues such as liver failure and seizures, and in the worst cases, it could be fatal.

English Ivy

English Ivy, revered for its cascading green foliage and ability to cleanse the air indoors, is a widely appreciated plant. But if you share your home with a cat, it's best to steer clear of this plant. It's known to cause various discomforting symptoms in cats, such as vomiting and abdominal pain. Furthermore, if your furry friend ingests it, they may experience hypersalivation, where they drool excessively, and diarrhea. So, as beautiful as English Ivy may seem, it's not worth the risk for our feline companions.


Lilies, with their pristine petals and elegant stature, are a favorite among plant enthusiasts and are often the stars of many indoor gardens. 

However, they pose a serious danger to cats. Almost all parts of the lily - the petals, leaves, pollen, and even the water in the vase - are highly toxic to cats. If a cat ingests even a small part of the plant or drinks the water the lily was placed in, it could cause acute kidney failure in a matter of days. It's best to appreciate the beauty of these plants from afar if you own a cat.

Jade Plant

Jade Plants are succulents that many indoor plant lovers adore for their easy maintenance and thick, luscious leaves. But, this plant can be a danger to your furry friend. Jade Plants are known to be toxic to cats. If a cat nibbles on the leaves, they could experience uncomfortable symptoms such as vomiting, lethargy, depression, and a lack of coordination. 

Keeping these potential hazards in mind, it might be best to opt for safer alternatives if you share your home with a cat.


Azaleas, celebrated for their vibrant blooms and luxurious foliage, can be tempting additions to your indoor garden. However, despite their breathtaking beauty, these plants can be deadly to cats. Ingesting even a small amount of Azalea leaves can cause a myriad of health problems for cats. 

Symptoms include oral irritation, which can make eating and drinking painful, diarrhea, vomiting, and potentially fatal changes in blood pressure and heart rate.

Snake Plant

The Snake Plant, also known as mother-in-law’s tongue, is renowned for its exceptional air-purifying qualities and ability to release oxygen at night. It’s a preferred choice for those looking for a touch of green that requires minimal maintenance. 

However, for cat owners, it's vital to know that these plants are toxic to cats. The unique chemical compounds in the plant can cause discomforting symptoms such as nausea, vomiting, and diarrhea.


The tulip, with its vibrant colors and iconic silhouette, is a beloved symbol of spring. However, they should be kept out of reach of your feline friends. 

Both the bulb and the flower of tulips can cause harm to cats if ingested. The toxic compounds can result in mouth and esophageal irritation, leading to discomfort when eating or swallowing. Additionally, cats may drool excessively and suffer from abdominal pain.


Cyclamen's beautiful flowers can attract curious cats. However, this plant can cause significant gastrointestinal distress, including vomiting and diarrhea. Severe cases might also include heart rhythm abnormalities.

Pothos (Devil’s Ivy)

Pothos, or Devil’s Ivy, is another plant that, while beneficial for humans, is dangerous for cats. It can cause oral irritation, intense burning and irritation of the mouth, lips, tongue, excessive drooling, vomiting, and difficulty swallowing.


The bright red blooms of the Amaryllis can entice any cat, but ingestion of this plant can lead to vomiting, depression, abdominal discomfort, hypersalivation, tremors, and reduced appetite.


Despite their beauty and popularity as gifts, chrysanthemums are harmful to cats. Consuming these plants can result in vomiting, diarrhea, hypersalivation, incoordination, and dermatitis.

Rubber Tree

The Rubber Tree, favored for its glossy leaves, is toxic to cats. Its sap can cause irritation in the mouth and gastrointestinal tract, leading to drooling, vomiting, and diarrhea.

Peace Lily

Although it's a symbol of tranquility, the Peace Lily is a poisonous plant for cats. It can cause irritation around the mouth, excessive drooling, difficulty swallowing, and vomiting.


The heart-shaped leaves of the Philodendron might win hearts and make your indoor garden look amazing, but they are toxic to cats. The ingestion of this plant can lead to oral irritation, painful swallowing, excessive drooling, and vomiting.

Autumn Crocus

The Autumn Crocus can cause severe gastrointestinal distress, including vomiting and diarrhea, as well as nervous system and kidney damage, or even respiratory failure in severe cases.

Chinese Evergreen

This plant's lush leaves might make it a great interior décor addition, but it's another plant to avoid if you own cats. Ingestion can lead to irritation in the mouth and gastrointestinal tract, leading to drooling, vomiting, and diarrhea.


While indoor plants can significantly enhance the aesthetics of your living space and provide numerous health benefits, it's critical to ensure the safety of your furry friends. This list is not exhaustive, so always do your research or consult with a veterinarian before introducing a new plant into your home. Remember, our cats may not understand the danger that some plants pose, so it's our responsibility to keep them safe from harm. Let's create a pet-friendly green space that both you and your feline companion can enjoy together.