Hosta

Yes, hostas are toxic to cats. They contain saponins that cause gastrointestinal distress, and the ASPCA classifies them as potentially toxic for cats.

The most common symptoms are vomiting, diarrhea, and abdominal pain. More severe cases can involve bloody stools, lethargy, depression, and loss of appetite, with severity generally tracking how much was eaten. GI signs typically appear within hours of ingestion.

Monitor your cat closely for vomiting, diarrhea, and lethargy. A single chewed leaf with mild signs usually does not require an emergency visit, but call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 if vomiting is bloody or persists past 24 hours, your cat refuses food for more than a day, or your cat seems markedly lethargic.

GI symptoms typically appear within hours of ingestion and resolve within about 24 hours with supportive care. More severe ingestions — where a larger amount was consumed — can result in symptoms that persist longer than a day.

Yes, hostas are toxic to dogs. They contain saponins, which can cause vomiting, diarrhea, and lethargy if ingested. The ASPCA classifies hostas as poisonous to dogs, so they are best kept out of reach in gardens where dogs roam.

The most common signs are vomiting, diarrhea, and lethargy. You may also notice your dog seems unusually quiet or withdrawn, or loses interest in food. Watch closely for bloody stool or repeated vomiting that prevents your dog from keeping water down, as those signs raise the urgency for veterinary care.

Remove any remaining plant material from your dog's mouth and the area, then offer fresh water. Do not induce vomiting unless directed by a professional. Call the ASPCA Animal Poison Control Center at (888) 426-4435 or your vet before giving any medications or home remedies — they can give you a case-specific risk assessment.

Symptoms typically begin within a few hours of ingestion. Saponin-related GI signs generally resolve within 24–48 hours once the plant material has cleared your dog's digestive tract. A healthy adult dog with mild symptoms can often recover with supportive care at home, but call your vet if vomiting or diarrhea persists past a single episode or if your dog refuses water for more than a few hours.