{"id":"lily-of-the-valley","common_names":["Lily of the Valley"],"scientific_name":"Convallaria majalis","urls":{"plant":"https://verdapaw.com/plants/lily-of-the-valley","cats":"https://verdapaw.com/plants/lily-of-the-valley/cats","dogs":"https://verdapaw.com/plants/lily-of-the-valley/dogs","data":"https://verdapaw.com/plants/lily-of-the-valley/data.json"},"toxicity":{"cat":{"severity":3,"grade":"S3 Toxic","verdict_sentence":"Lily of the valley (Convallaria majalis, not a true lily) is toxic to cats (S3 Toxic): its cardenolides are heart toxins, and the signs on record include vomiting, an irregular heartbeat, low blood pressure, weakness, disorientation, seizures, and coma.","toxic_principles":["cardenolides (convallarin and others)"],"toxic_parts":[],"symptoms":[{"sign":"vomiting","onset":"not specified in source"},{"sign":"loss of appetite","onset":"not specified in source"},{"sign":"irregular heartbeat; changes in heart rate and rhythm","onset":"not specified in source"},{"sign":"low blood pressure","onset":"not specified in source"},{"sign":"weakness","onset":"not specified in source"},{"sign":"disorientation","onset":"not specified in source"},{"sign":"seizures","onset":"not specified in source"},{"sign":"coma","onset":"not specified in source"}],"sources":[{"url":"https://www.aspca.org/pet-care/aspca-poison-control/toxic-and-non-toxic-plants/lily-valley","name":"ASPCA","accessed_at":"2026-09-26"},{"url":"https://www.petpoisonhelpline.com/poison/lily-of-the-valley/","name":"PPH","accessed_at":"2026-09-26"}],"reviewed_by":"Zhe Li","reviewed_at":"2026-09-26"},"dog":{"severity":3,"grade":"S3 Toxic","verdict_sentence":"Lily of the valley (Convallaria majalis, not a true lily) is toxic to dogs (S3 Toxic): its cardenolides are heart toxins, and the signs on record include vomiting, an irregular heartbeat, low blood pressure, weakness, disorientation, seizures, and coma.","toxic_principles":["cardenolides (convallarin and others)"],"toxic_parts":[],"symptoms":[{"sign":"vomiting","onset":"not specified in source"},{"sign":"loss of appetite","onset":"not specified in source"},{"sign":"irregular heartbeat; changes in heart rate and rhythm","onset":"not specified in source"},{"sign":"low blood pressure","onset":"not specified in source"},{"sign":"weakness","onset":"not specified in source"},{"sign":"disorientation","onset":"not specified in source"},{"sign":"seizures","onset":"not specified in source"},{"sign":"coma","onset":"not specified in source"}],"sources":[{"url":"https://www.aspca.org/pet-care/aspca-poison-control/toxic-and-non-toxic-plants/lily-valley","name":"ASPCA","accessed_at":"2026-09-26"},{"url":"https://www.petpoisonhelpline.com/poison/lily-of-the-valley/","name":"PPH","accessed_at":"2026-09-26"}],"reviewed_by":"Zhe Li","reviewed_at":"2026-09-26"}},"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/lily-of-the-valley, reviewed 2026-09-26"}