Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Showy Fleabane - what should I do?
Erigeron speciosus
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
Gastrointestinal upset, including vomiting, diarrhea, and potential drooling.
Escalation note
Ingestion can cause discomfort; please contact your veterinarian if your cat has consumed any part of this plant.
What to watch for
Most common: vomiting and diarrhea after chewing leaves or flower heads. Less common: drooling, mild redness or itchy patches where fur made contact with the plant. Signs are usually mild — more nuisance than crisis.
Time window
Exact timing isn't well documented for this species. ASPCA describes signs as mild and gastrointestinal, which typically appear within an hour or two of ingestion and resolve as the irritant clears the stomach.
When to call the vet
Call your vet or ASPCA Poison Control (888-426-4435) if vomiting or diarrhea persists more than a few hours, your cat refuses food or water, or you see lethargy that goes beyond a quick post-upset rest.
What this means for your cat
Cats that nibble showy fleabane usually end up with mild stomach upset rather than a serious emergency. ASPCA classifies the genus as toxic because of irritant compounds in the leaves and flowers, which can trigger vomiting, diarrhea, and a little dermatitis if your cat brushed against the plant.
Sources: ASPCA.
Source references
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.