Common Poisonous Houseplants to Keep Away from Kids and Pets

Stay Safe Around Indoor Plants

Most houseplants are harmless, but a few can cause skin irritation, stomach upset, or worse if chewed or ingested by curious children or pets. Toxicity varies—many require large amounts to cause serious harm, and bitter taste often deters further eating. If you suspect poisoning, call your doctor, veterinarian, or the National Capital Poison Center at 800‑222‑1222 immediately.

Daffodil (Narcissus spp.)

Bulbs (often mistaken for onions) cause severe stomach issues, high blood pressure, irregular heartbeat, and can be fatal. Hyacinths and other forced spring bulbs pose similar risks.

Dumb Cane (Dieffenbachia spp.)

Sap causes burning, swelling of the tongue and throat, potentially blocking airways. Can be fatal in large amounts.

Easter Lily (Lilium longiflorum)

Extremely toxic to cats—even small amounts cause kidney failure within 18 hours if untreated. Not poisonous to humans but choking hazard.

English Ivy (Hedera helix)

Large quantities needed for serious effects, but all parts can cause skin irritation, burning throat, fever, and rash.

Oleander (Nerium oleander)

All parts are extremely poisonous; sap can be fatal if ingested. Wear gloves when pruning.

Peace Lily (Spathiphyllum spp.)

Toxic only if large quantities of leaves are eaten.

Philodendron (Philodendron spp.)

Causes burning, swelling of lips, tongue, throat; vomiting and diarrhea.

Pothos (Epipremnum aureum)

Close relative of philodendron with identical symptoms if ingested.

Sago Palm (Cycas revoluta)

All parts, including seeds and roots, are poisonous. Ingestion causes vomiting, diarrhea, and potential liver failure.

ZZ Plant (Zamioculcas zamiifolia)

All parts are toxic. Keep away from children and pets; wash hands or wear gloves after handling.

This list is not exhaustive. Contact your local Extension Service for more information on specific plants.