{"id":"hyacinth","common_names":["Hyacinth","Common Hyacinth","Dutch Hyacinth"],"scientific_name":"Hyacinthus orientalis","urls":{"plant":"https://verdapaw.com/plants/hyacinth","cats":"https://verdapaw.com/plants/hyacinth/cats","dogs":"https://verdapaw.com/plants/hyacinth/dogs","data":"https://verdapaw.com/plants/hyacinth/data.json"},"toxicity":{"cat":{"severity":3,"grade":"S3 Toxic","verdict_sentence":"Hyacinths are seriously toxic to cats (S3 Toxic): their narcissus-like alkaloids can cause intense vomiting, bloody diarrhea, depression, and tremors — and the toxin is most concentrated in the bulb.","toxic_principles":["possibly narcissus-like alkaloids"],"toxic_parts":["all parts","bulbs — highest toxin concentration"],"symptoms":[{"sign":"intense vomiting","onset":"not specified in source"},{"sign":"diarrhea, occasionally with blood","onset":"not specified in source"},{"sign":"depression","onset":"not specified in source"},{"sign":"tremors","onset":"not specified in source"},{"sign":"bulb ingestion: persistent gastrointestinal distress and lethargy","onset":"not specified in source"}],"sources":[{"url":"https://www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants/hyacinth","name":"ASPCA","accessed_at":"2026-08-24"},{"url":"https://www.petpoisonhelpline.com/poison/tulip/","name":"PPH","accessed_at":"2026-08-24"}],"reviewed_by":"Zhe Li","reviewed_at":"2026-09-30"},"dog":{"severity":3,"grade":"S3 Toxic","verdict_sentence":"Hyacinths are seriously toxic to dogs (S3 Toxic): their narcissus-like alkaloids can cause intense vomiting, diarrhea that is sometimes bloody, depression, and tremors — and the toxin is most concentrated in the bulb.","toxic_principles":["possibly narcissus-like alkaloids"],"toxic_parts":["all parts","bulbs — highest toxin concentration"],"symptoms":[{"sign":"intense vomiting","onset":"not specified in source"},{"sign":"diarrhea, occasionally with blood","onset":"not specified in source"},{"sign":"depression","onset":"not specified in source"},{"sign":"tremors","onset":"not specified in source"},{"sign":"bulb ingestion: persistent gastrointestinal distress and lethargy","onset":"not specified in source"}],"sources":[{"url":"https://www.aspca.org/pet-care/animal-poison-control/toxic-and-non-toxic-plants/hyacinth","name":"ASPCA","accessed_at":"2026-09-30"},{"url":"https://www.petpoisonhelpline.com/poison/tulip/","name":"PPH","accessed_at":"2026-09-30"}],"reviewed_by":"Zhe Li","reviewed_at":"2026-09-30"}},"license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/","terms":"Free to reuse with attribution to Verdapaw and a link to the plant page."},"cite_as":"Verdapaw Plant × Pet Safety Index, verdapaw.com/plants/hyacinth, reviewed 2026-09-30"}