Is Oxalis Toxic to Cats?

Yes — Oxalis is mildly toxic to cats

Oxalis (Shamrock Plant) contains soluble oxalates that bind calcium in the body. While small amounts cause only mild GI upset, large quantities can theoretically cause kidney issues, though this is rare in pets.

Symptoms in Cats

If your cat eats Oxalis, watch for these symptoms (onset: 1 to 4 hours):

Drooling
Vomiting
Diarrhea
Tremors (large amounts)
Kidney damage (large amounts)

What To Do

Small nibbles cause mild GI upset. Large ingestions can affect kidneys — contact vet if your pet ate more than a few leaves.

Cat-Safe Alternatives to Oxalis

✓ Prayer Plant ✓ Nerve Plant ✓ Polka Dot Plant

Quick Facts

Scientific Name

Oxalis triangularis

Also Toxic to Dogs?

Yes (mild)

Toxic Compound

Soluble oxalates (oxalic acid)

Toxic Parts

all parts, leaves, bulbs

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline. View full Oxalis toxicity profile.