Showy Fleabane

Yes, Showy Fleabane (Erigeron speciosus) is considered potentially toxic to cats. Ingestion can cause gastrointestinal upset including vomiting, diarrhea, and drooling, though symptoms are typically mild rather than life-threatening.

The most common signs are vomiting and diarrhea, which typically appear within an hour or two of ingestion and resolve as the irritant clears the stomach. Less commonly, cats may drool or develop mild skin irritation where fur contacted the plant.

Remove your cat's access to the plant and monitor closely. Call your vet or ASPCA Animal Poison Control at (888) 426-4435 if vomiting or diarrhea persists more than a few hours, your cat refuses food or water, or lethargy seems more than brief post-upset tiredness.

The available data indicates the leaves and flower heads are the primary concern — chewing either can trigger gastrointestinal upset. Skin contact with the plant may also cause mild redness or itchiness, so the whole plant is best kept out of reach.

Yes, Showy Fleabane (Erigeron speciosus) is considered potentially toxic to dogs. If ingested, it can cause gastrointestinal distress including vomiting, diarrhea, and lethargy. Severity is typically mild, but the situation should be monitored closely.

The most common signs are vomiting and loose stool, usually mild. Your dog may also drool, seem lethargic for a few hours, or develop red, itchy skin where they made direct contact with the plant. Watch for repeated vomiting that prevents your dog from keeping water down, as that warrants prompt veterinary attention.

Keep your dog calm and monitor them closely for vomiting, diarrhea, or lethargy. Gastrointestinal signs typically appear within an hour or two and resolve as the irritant passes. Call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 if vomiting or diarrhea continues past a few hours, your dog can't keep water down, or you notice weakness, refusal to eat, or signs of dehydration.

Exact timing is not well documented for Erigeron speciosus, but the ASPCA describes the effects as mild gastrointestinal signs that typically appear within an hour or two of ingestion and resolve as the irritant passes through the system.