Is Narcissus toxic to pets?
Narcissus plants contain toxic alkaloids, primarily lycorine, which are concentrated most heavily in the bulb but present throughout the entire plant. If ingested by dogs, cats, or horses, it can cause severe vomiting, excessive salivation, diarrhea, abdominal pain, cardiac arrhythmias, and low blood pressure. In severe cases, ingestion can lead to tremors and convulsions, requiring immediate veterinary attention.