Poisonous Houseplants: Identifying Risks for Children and Pets

Why Plant Toxicity Matters

Many popular houseplants contain compounds—oxalates, solanine, glycosides, alkaloids like lycorine—that can cause mild to severe reactions if ingested or touched. Symptoms range from oral irritation, vomiting, and diarrhea to breathing difficulties and, in rare cases, life-threatening reactions.

Factors Influencing Severity

• Plant part and amount consumed
• Age, weight, and health of the person or pet
• Individual sensitivity (allergic reactions can occur even with “non-toxic” plants)

Common Toxic Houseplants

Amaryllis, dieffenbachia (dumb cane), philodendron, pothos, peace lily, caladium, oleander, sago palm, and many euphorbias. Even popular plants like ZZ plant and snake plant can cause irritation.

What to Do

• Research every plant before bringing it home.
• Keep toxic plants out of reach of children and pets.
• Wear gloves when handling plants with irritating sap.
• If ingestion or contact occurs, call Poison Control immediately: 1-800-222-1222.

Reference: The Handbook of Poisonous and Injurious Plants is an excellent resource for households with kids and pets.