Is Snake Plant Toxic? Safety Guide for Pets & Kids

By Tom Anderson · August 14, 2025

Yes, snake plant (Sansevieria) is toxic to humans and pets when ingested. It contains saponins, which can cause nausea, vomiting, and diarrhea. While serious poisoning is rare, it’s best to keep the plant out of reach of children and animals.

Understanding Snake Plant Toxicity

The snake plant, scientifically known as Sansevieria trifasciata, is a popular houseplant due to its air-purifying qualities and low maintenance needs. However, despite its benefits, it poses a mild toxicity risk.

Why Is Snake Plant Toxic?

The primary reason for snake plant toxicity lies in its natural defense mechanism. The plant produces saponins, chemical compounds that protect it from insects and fungi. When ingested by humans or animals, these saponins can irritate the gastrointestinal tract.

Saponins create foam in water and act as natural detergents
They disrupt cell membranes in the digestive system
Symptoms are typically mild but uncomfortable

Symptoms of Snake Plant Poisoning

Toxic reactions are generally mild but vary depending on the individual and amount consumed.

In Humans

While adult humans are unlikely to eat large quantities, children may chew on leaves out of curiosity. Symptoms include:

Mouth irritation or swelling
Nausea and vomiting
Diarrhea
Salivation

In Pets (Cats and Dogs)

Pets are more susceptible due to grooming habits and tendency to chew plants. According to the ASPCA, snake plant is listed as toxic to both cats and dogs.

Vomiting
Excessive drooling
Loss of appetite
Depression or lethargy

Species	Severity Level	Common Symptoms	Onset Time	Treatment Needed
Humans (Adults)	Mild	Nausea, mouth irritation	15–60 minutes	Rarely
Children	Moderate	Vomiting, diarrhea	10–45 minutes	Occasionally
Cats	Moderate	Drooling, vomiting	30–90 minutes	Often
Dogs	Moderate	Lethargy, GI upset	20–60 minutes	Sometimes

Table data source:1, 2

The data shows that while snake plant toxicity is rarely life-threatening, cats exhibit the highest need for treatment due to sensitivity to saponins. Onset times are relatively quick across all groups, indicating rapid absorption of irritants.

What to Do If Poisoning Is Suspected

If a person or pet ingests part of a snake plant, immediate action can minimize discomfort and complications.

For Humans

Rinse the mouth with water
Drink milk or water to dilute toxins
Contact a poison control center if symptoms persist

For Pets

Remove plant debris from mouth
Offer fresh water
Contact a veterinarian immediately, especially for cats

The ASPCA Animal Poison Control Center provides 24/7 support for pet-related poisoning emergencies.

Safe Handling and Placement Tips

You don’t need to remove your snake plant to stay safe. Follow these expert recommendations:

Place plants on high shelves or hanging pots out of reach
Use pet-safe barriers or deterrent sprays
Label houseplants with toxicity information
Teach children not to taste household plants
Wear gloves when pruning to avoid skin irritation

Common Questions About Snake Plant Toxicity

Is snake plant toxic to cats?

Yes, snake plant is toxic to cats. Ingestion can cause vomiting, drooling, and lethargy due to saponins in the leaves. Even small amounts may trigger a reaction, so it’s best to keep the plant inaccessible.

Can dogs get sick from eating snake plant?

Yes, dogs can experience gastrointestinal upset such as vomiting and diarrhea after chewing on snake plant leaves. While rarely fatal, veterinary consultation is recommended if symptoms are severe or persistent.

Is snake plant poisonous to humans?

Snake plant is mildly poisonous to humans. Chewing the leaves may cause oral irritation, nausea, or vomiting, especially in children. Skin contact with sap may also cause mild dermatitis in sensitive individuals.

Are snake plant flowers toxic?

Yes, all parts of the snake plant, including flowers, contain saponins and are considered toxic if ingested. Though flowering is rare indoors, caution should still be exercised around the blooms.

Do snake plants release toxins at night?

No, snake plants do not release harmful toxins at night. They perform CAM photosynthesis, releasing oxygen instead of carbon dioxide. This makes them safe and even beneficial for bedrooms, despite their toxic sap.