Monstera
Monstera deliciosa · Araceae
How it looks
Monstera is a houseplant with large, glossy, deep-green leaves that develop natural splits and holes. The splits grow deeper and larger as the leaves mature, with leaves reaching 12–31 in (30–80 cm). Long aerial roots hang down from the thick stems.
Caution — leaf sap irritates the mouth
The sap in the leaves and stems contains calcium oxalate crystals. Chewing causes stinging of the mouth and tongue, drooling, and vomiting. Most cats spit it out after a bite or two, and symptoms ease on their own.
Guide for parents
Monstera's large, eye-catching leaves tend to draw a cat's attention. The way the big leaves sway can trigger their hunting instinct. Place the pot on a high shelf, or tie the leaves up so they don't trail within reach. New leaves (the young ones still curled at the center) are the softest and most irritating, so keep them especially out of paws' reach.
If ingested
Contact your nearest vet immediately
- Onset
- Within minutes of chewing
- Symptoms
- Oral irritation, vomiting, difficulty swallowing
- Action
- Rinse the mouth with water. See a vet if symptoms last more than 6 hours or breathing is affected.
Details
- Scientific name
- Monstera deliciosa
- Common name
- Monstera
- Family
- Araceae
- Toxic parts
- All parts
- Compounds
- Insoluble calcium oxalate crystals
- Onset
- Within minutes of chewing
- Symptoms
- Oral irritation, vomiting, difficulty swallowing
- Action
- Rinse the mouth with water. See a vet if symptoms last more than 6 hours or breathing is affected.
- Source
- ASPCA
Related plants
Same plant family· Araceae
Related guides
Top 10 Flowers Dangerous to Cats — The Ones You See at Florists
Ten flowers you'll commonly find at florists and grocery stores that are toxic to cats. Check before you receive them, and before you bring them home.
Got a Bouquet? What to Do If You Have a Cat
A bouquet is a lovely surprise — but if you live with a cat, there are a few things to take care of right away. From checking what's in the arrangement to choosing the right vase, here's what actually helps, in order.
Why Cats Chew Plants, and How to Stop It
A cat chewing and tearing at plants isn't just mischief — there's an instinct behind it. Once you understand why, the ways to stop it follow naturally.
