Lily of the Valley — no rights reserved, uploaded by Vladimir
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Pet safety reference

Lily of the Valley

Convallaria majalis

Lily of the Valley is a popular spring-flowering perennial known for its fragrant, bell-shaped white flowers. It contains cardiac glycosides that are highly toxic to pets if ingested.

Convallaria majalisLily of the ValleyMay bells
Light
Partial shade to full shade
Habit
Rhizomatous perennial
Care
Low

Safety status

Cats & Dogs

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Catsconcern notes

Common signs

Vomiting, irregular heartbeat, low blood pressure, disorientation, and potential seizures.

Escalation note

This plant is considered highly toxic. Ingestion of any part of the plant can lead to life-threatening cardiac arrhythmias. Contact your veterinarian immediately if ingestion is suspected.

Dogsconcern notes

Common signs

Vomiting, diarrhea, lethargy, cardiac rhythm disturbances, and collapse.

Escalation note

The plant contains potent cardiac glycosides that affect the heart muscle. Immediate veterinary intervention is required if a dog consumes any portion of this plant.

Safer alternatives

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Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Contains cardiac glycosides which can cause cardiac arrhythmias, vomiting, and diarrhea.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Convallaria majalis is a rhizomatous perennial that is highly toxic to humans and animals.

cats safety pageMy cat ate Lily of the Valleydogs safety pageMy dog ate Lily of the Valley

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