Aloe
Aloe gel may be soothing, but the aloe plant is toxic if chewed whole.
Jade Plant
Can cause vomiting, lethargy, and incoordination in pets and humans.
Sansevieria (Snake Plant)
Mildly toxic if ingested and causes nausea, vomiting, and diarrhea.
Monstera
Gorgeous leaves, but irritating to mouths and stomachs.
Lilies
Extremely toxic to cats; even pollen or vase water can be deadly.
Bird of Paradise
Seeds and pods can cause drowsiness, vomiting, or trouble breathing in humans or pets.
Caladium
Vibrant foliage, but dangerous: causes severe mouth and throat irritation if ingested.
Oleander
All parts are highly poisonous; even a small amount can be fatal.
Dieffenbachia (Dumb Cane)
Chewing causes burning, swelling, and difficulty swallowing in both humans and animals.
Pothos (Devil’s Ivy)
Common but toxic; ingestion leads to vomiting and oral irritation.
For the full list of toxic and non-toxic plants, go to aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants.