Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Parsley - what should I do?
Petroselinum crispum
Potentially toxic
Contact your veterinarian or an animal poison-control resource now, especially if any amount was chewed or swallowed.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Signs to watch for
Dermatitis, photosensitivity, and potential skin irritation upon contact or ingestion.
Escalation note
Symptoms are generally mild but can be uncomfortable; contact your veterinarian if your cat shows signs of skin sensitivity or digestive distress.
First aid at home
Remove any remaining parsley from reach, rinse the mouth gently with water, and limit your cat's sun exposure for the next 24-48 hours if you're concerned about photosensitization. Do not induce vomiting at home — Pet Poison Helpline cautions against unsupervised home emesis.
What to watch for
Watch for skin redness, irritation, or sunburn-like patches — especially on lightly furred areas (ear tips, nose, belly) after sun exposure. Mild GI upset (drool, soft stool, brief vomiting) is also possible after a larger nibble.
Time window
Skin reactions can develop after sun exposure in the day(s) following a large ingestion; specific timing isn't well documented in the ASPCA listing.
When to call the vet
Call your vet or ASPCA Poison Control (888-426-4435) if your cat ate a substantial amount of fresh parsley, or if you see persistent skin redness, blistering, or signs of pain in the day or two after exposure. A small chew of garnish-sized parsley typically doesn't require an emergency call.
What this means for your cat
Parsley is on the ASPCA's toxic list for cats, but the practical risk is fairly mild. The furanocoumarins it contains can cause photosensitization (sunburn-like skin reactions and dermatitis), but this generally only happens after a cat eats a substantial amount.
Sources: ASPCA, Pet Poison Helpline.
Source references
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.