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There is no universal list of houseplants that everyone must avoid. These 12 are worth keeping out of homes where young children or plant-chewing pets could reach them because poison-control and extension sources identify potential hazards. The risk depends on the plant, the part involved, and whether exposure is by eating it or touching it—not every contact causes serious illness. The examples below are not ranked by severity.
Why these plants may not suit every home
“Potentially poisonous” does not mean that a plant will inevitably cause harm. Poison Control notes that hazards vary by species, plant part, and route of exposure; some plants are harmful if eaten, while others can cause problems through skin contact. The examples here are selected because North Carolina Poison Control lists several as potentially poisonous indoor plants and UF/IFAS Extension discusses potential risks from the others. The sources do not provide a consistent scale for ranking them.
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Children who may put leaves or flowers in their mouths and pets that chew foliage are the main household situations to consider. A plant that is manageable in one home may be a poor fit in another. Confirm the plant’s identity before relying on general advice: keep its label or take a clear photograph, since accurate identification helps Poison Control provide guidance.
12 indoor plants to reconsider around children and pets
1. Amaryllis (Hippeastrum spp.)
North Carolina Poison Control includes amaryllis among potentially poisonous indoor plants. Its listing does not specify symptoms, a harmful plant part, or an exposure threshold, so the source supports caution around possible ingestion—not a claim about a particular outcome.
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2. Caladium (Caladium spp.)
Caladium also appears on North Carolina Poison Control’s list of potentially poisonous indoor plants. That listing establishes a reason to keep it from children or animals likely to chew it, but does not describe a specific effect or dose.
3. Dumb cane (Dieffenbachia spp.)
North Carolina Poison Control lists dumb cane as potentially poisonous. UF/IFAS describes intense mouth irritation and other symptoms after ingestion of insoluble calcium oxalate crystals found in related common houseplants. Because the effect depends on the exact plant and exposure, do not assume every contact has the same result.
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4. English ivy (Hedera helix)
North Carolina Poison Control includes English ivy among potentially poisonous indoor plants. The reviewed listing does not specify symptoms or exposure details; keep it away from anyone likely to eat its leaves rather than infer an outcome the source does not describe.
5. Peace lily (Spathiphyllum spp.)
North Carolina Poison Control lists peace lily as potentially poisonous. UF/IFAS says it contains insoluble calcium oxalates and recommends placing it where pets cannot reach it. That makes it a particularly relevant plant to reassess in a home with an animal that chews foliage.
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6. Philodendron (Philodendron spp.)
North Carolina Poison Control lists philodendron as potentially poisonous. UF/IFAS’s more specific guidance concerns heartleaf philodendron: all parts contain needle-like calcium oxalate crystals, which can cause oral irritation, pain, and swelling after ingestion. Additional potentially serious effects are described, but that does not mean every exposure leads to them.
7. Golden pothos, or devil’s ivy (Epipremnum aureum)
North Carolina Poison Control lists golden pothos as potentially poisonous. UF/IFAS says it contains insoluble calcium oxalate crystals associated with mouth irritation and related symptoms following ingestion. Consider whether trailing foliage could be reached by a child or pet.
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8. Monstera, or Swiss cheese plant (Monstera deliciosa)
UF/IFAS includes monstera among common decorative houseplants in its houseplant publication. The cited material supports identifying it as a plant to consider in household plant-safety decisions, but does not establish a specific symptom claim here.
9. Arrowhead vine (Syngonium podophyllum)
UF/IFAS discusses arrowhead vine as a houseplant with potential toxicity. The risk is not established as identical for every cultivar, exposure, or household, so treat it as a reason to prevent chewing rather than as a prediction of a particular outcome.
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10. Shamrock (Oxalis spp.)
UF/IFAS says soluble calcium oxalates in shamrock can cause kidney failure, tremors, and salivation in cats and dogs, and recommends placing the plant out of their reach. These are possible effects of pet exposure, not a claim that every nibble causes them.
11. Jade plant (Crassula spp.)
UF/IFAS says ingestion of jade plant can cause vomiting, depression, and incoordination in cats and dogs. If a pet tends to chew plants, this is a reason to choose different greenery or keep the jade plant somewhere the animal cannot access.
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UF/IFAS says desert rose contains cardiac glycosides. In pets, possible effects include vomiting, diarrhea, and an irregular heartbeat; severe cases can be fatal. This describes a potential risk, not the typical outcome of every exposure.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to decide what belongs in your home
- Consider who can reach the plant. Young children and pets that chew foliage are important exposure contexts. A high shelf is not a dependable barrier for every animal.
- Check the route and plant part. The sources describe hazards involving ingestion and, for some plants, skin contact; the relevant part may differ by plant. Do not assume all plants or exposures behave alike.
- Identify the plant accurately. Keep its label or a clear photograph available in case you need advice. Common names can refer to different plants, so use the botanical name when possible.
- Observe pets around new plants. The University of Tennessee Extension recommends watching how pets interact with plants and moving them somewhere inaccessible if needed. Its guidance focuses on dogs and cats, is not exhaustive, and does not cover every indoor pet.
- Choose alternatives with care. The Tennessee guide names Peperomia among houseplants it considers largely nontoxic to dogs and cats. That is not a guarantee for every species, animal, or household; check the exact plant and ask a veterinarian if unsure.
What to do after possible exposure
If a person may have eaten a plant, Poison Control recommends using webPOISONCONTROL or calling 1-800-222-1222. Have the plant label or a clear photograph ready. Poison Control’s guidance is: “Don’t guess what you should do. Get accurate answers online or by phone.”
If a pet may have eaten a plant, contact a veterinarian and/or an animal poison-control service, as advised by the University of Tennessee Extension. This article cannot determine whether a particular exposure is harmful or diagnose symptoms.
Quick Recap
Sources and scope
- Poison Control, “Poisonous and non-poisonous plants: An illustrated list” explains that plant hazards vary, offers identification guidance, and describes human exposure response.
- North Carolina Poison Control, “Poisonous Plants” lists common potentially poisonous indoor plants; the page says it was last updated September 19, 2024.
- University of Florida IFAS Extension, “Common Poisonous Houseplant Species in Florida,” and UF/IFAS St. Johns County, “Houseplants, Pets, and Poison” discuss specific houseplants and pet exposure.
- University of Tennessee Extension, “Growing Indoor Plants with Pets” covers pet-focused prevention and alternatives, with limits on the animals and plants covered.
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