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Is Sweet Pea Toxic to Cats? Safety Verdict and What to Do

PawAI Lab
4 min read

Learn whether sweet pea poses a toxicity risk to cats, what signs may appear after exposure, and what immediate steps to take if your cat may have been exposed.

Quick Answer

Yes, sweet pea is toxic to cats. Plants include pokeweed, morning glory, sweet pea, lupine, and bird of paradise. Severity varies by species and amount ingested. If your cat may have been exposed, contact a veterinarian or animal poison-control service right away, even if no signs are visible yet.

Before using any tool, contact a veterinary professional if your cat may have been exposed.

  • US: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • UK: Animal PoisonLine (01202 509000) or your nearest veterinary emergency clinic
  • Canada: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • AU: Animal Emergency Centre or your regular vet
  • EU: Contact your nearest veterinary emergency service

TOXICITY CHECKER

Check whether a substance may be harmful to your pet and get prioritized safety steps.

Check Toxicity

This tool provides general safety information and does not replace veterinary advice in an emergency.

Safety Verdict

Toxic. These plants contain various toxic compounds including phytolaccatoxin, lysergic acid derivatives, aminopropionitrile, quinolizidine alkaloids, and hydrocyanic acid. They cause gastrointestinal and neurological effects of varying severity.

Plants include pokeweed, morning glory, sweet pea, lupine, and bird of paradise. Severity varies by species and amount ingested.

What It Is

Sweet peas contain aminopropionitrile and other compounds. Ingestion, particularly of seeds and flowers, can cause neurological effects and weakness.

Why It May Be Harmful

The toxic principle in sweet pea is various plant alkaloids and toxins. These plants contain various toxic compounds including phytolaccatoxin, lysergic acid derivatives, aminopropionitrile, quinolizidine alkaloids, and hydrocyanic acid. They cause gastrointestinal and neurological effects of varying severity.

Signs of toxicity may include:

  • Vomiting
  • Diarrhea
  • Drooling
  • Weakness
  • Loss of coordination
  • Tremors
  • Abdominal pain
  • Lethargy

Timeline: Signs typically develop within 1 to 6 hours.

Usually moderate. Most recover with supportive care.

What to Do If Your Cat Eats It

  1. Contact a veterinarian or animal poison-control service for guidance.
  2. Remove any remaining substance from your cat's reach.
  3. Offer fresh water if your cat is willing to drink.
  4. Monitor for signs and contact a veterinarian if they develop or worsen.

Information to have ready when you call:

  • Your cat's age, approximate weight, and any health conditions
  • The name or type of sweet pea and the estimated amount consumed
  • When the exposure likely occurred
  • Any current symptoms your cat is showing
  • The product packaging or a photo of the plant if applicable

If only a small amount was consumed with mild signs, monitoring may be appropriate after consulting a veterinarian.

When to Contact a Veterinarian

Contact a veterinarian or animal poison-control service immediately if your cat may have been exposed to sweet pea. Do not wait for symptoms to develop.

Emergency signs that require urgent veterinary attention:

  • Seizures
  • Persistent vomiting
  • Collapse
  • Severe weakness

Non-urgent follow-up: If only a small amount was consumed with mild signs, monitoring may be appropriate after consulting a veterinarian.

FAQ

Are these plants commonly found in gardens?

Some, like morning glory and sweet pea, are common ornamentals. Pokeweed is a common weed. Lupine and bird of paradise are also grown ornamentally.

How toxic are these plants to cats?

Toxicity varies by species. Most cause moderate GI and neurological signs. Severe cases are uncommon but possible with large ingestions.

How is this type of poisoning treated?

Treatment is primarily supportive, including IV fluids, anti-emetics, and monitoring. Most cats recover fully with prompt care.

TOXICITY CHECKER

Concerned about another plant, food, medication, or household item around your cat? Get general, species-aware safety information to help you decide your next step.

Try Toxicity Checker

This tool provides general safety information and does not replace veterinary advice.

Sources

Disclaimer

This article and the PawAI Toxicity Checker tool provide general safety information and do not replace examination, diagnosis, or treatment by a licensed veterinarian. If your cat may have ingested a toxic substance, contact a veterinarian, emergency clinic, or animal poison control immediately.

Written by PawAI Lab