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Is Four O’Clock Toxic to Cats?

☠️ ToxicSeverity: Moderate
✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit
⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.
Yes, four o’clocks are toxic to cats. The flowers and especially the black seeds contain irritant compounds that cause vomiting and skin reactions.

Also known as: Marvel of Peru, Beauty of the Night, Mirabilis jalapa · Mirabilis jalapa

What makes it toxic

Unidentified alkaloid and irritant proteins, concentrated in the seeds and root. They irritate the digestive tract and can trigger dermatitis on contact.

Warning signs to watch for

Drooling, vomiting, diarrhea and loss of appetite within hours of eating flowers or seeds; redness and itching where fur brushed the plant.

What to do if your cat eats it

Remove plant material, rinse the mouth, bathe any irritated skin with mild soap and offer water. Call your vet if vomiting persists beyond several hours, and mention that seeds were eaten — they are the most potent part.

Common questions

Are the black seeds the dangerous part of four o’clock?

Yes — the pebble-like black seeds hold the highest concentration of toxins, and cats occasionally play with them as they drop. Sweep up fallen seeds in a cat household.

Can a cat die from eating four o’clock?

Death is very unlikely. Signs are usually a bad few hours of vomiting and discomfort. A vet should still see a cat that ate seeds or continues vomiting.

Is the root dangerous like people say?

The root is traditionally reported as the most toxic tissue after seeds, used historically as a poison ingredient. Keep cats from digging up or chewing tubers.

More plants checked for cats

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.