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Philodendron vs. Monstera: which is safe for cats and dogs?

Philodendron and Monstera are frequently confused by houseplant enthusiasts because both are commonly referred to as split leaf philodendron. Despite their different growth habits and botanical classifications, both plants are potentially toxic to cats and dogs. They contain insoluble calcium oxalate crystals, which cause immediate irritation upon contact with the mouth and digestive tract. While neither plant is typically fatal, ingestion often leads to significant discomfort for your pets. It is important to understand that because both plants share this chemical defense mechanism, neither can be considered a safe option for homes with curious animals that tend to chew on foliage.

Philodendron

Philodendron spp.

Philodendrons are popular tropical foliage plants known for their lush, heart-shaped or split leaves. They contain insoluble calcium oxalate crystals that can cause irritation if ingested.

cat

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Watch for

Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.

dog

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Watch for

Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.

Full Philodendron reference →

Monstera

Monstera deliciosa

Monstera deliciosa is a popular tropical houseplant known for its large, fenestrated leaves and vining growth habit. It contains insoluble calcium oxalate crystals that can cause irritation if ingested by pets.

cat

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Watch for

Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, and difficulty swallowing.

dog

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Watch for

Oral irritation, excessive drooling, pawing at the mouth, vomiting, and decreased appetite due to discomfort.

Full Monstera reference →

Safer alternatives

Safer pick

Baby Rubber Plant

Peperomia obtusifolia

Baby rubber plant has the same glossy-leaf look without the insoluble calcium oxalates.

Generally safe for cats & dogs.

Areca palm gives the same tropical statement and is non-toxic to cats and dogs.

Generally safe for cats & dogs.

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