Japanese Andromeda — (c) Marco Mussita, some rights reserved (CC BY), uploaded by Marco Mussita
Photo by (c) Marco Mussita, some rights reserved (CC BY), uploaded by Marco MussitaiNaturalistCC BY
cat safety reference

Is Japanese Andromeda safe for cats?

Pieris japonica

Pieris japonica is an evergreen shrub known for its drooping clusters of bell-shaped flowers. It contains grayanotoxins, which are highly toxic to pets if ingested.

Andromeda JaponicaJapanese AndromedaLily-of-the-valley shrubPieris japonica
Light
Partial shade to full sun
Habit
Shrub
Care
Moderate

Safety status

Cats

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.

What this means for your cat

Cats should be kept well away from Japanese andromeda — ASPCA notes that ingestion of even a few leaves can cause serious problems. The plant contains grayanotoxins that disrupt sodium channels in nerve and muscle cells, and the most dangerous effects are cardiovascular: collapse, low blood pressure, and slow or irregular heart rate.

What to watch for

Hypersalivation, vomiting, and diarrhea are typical early gastrointestinal signs. Watch closely for cardiovascular signs: weakness, depression, low blood pressure, slow or irregular heart rate, and cardiovascular collapse. Severe ingestions can progress to coma and death.

Time window

Exact onset and duration are not well documented for cats specifically. Severe ingestions can progress to cardiovascular collapse; aggressive supportive care at a veterinary hospital is the standard of care.

When to call the vet

Call immediately. Any suspected ingestion is a medical emergency for cats — contact your veterinarian or ASPCA Animal Poison Control at (888) 426-4435 right away. Do not wait for symptoms to appear.

Sources: ASPCA (no home first-aid guidance).

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

Excessive drooling, vomiting, diarrhea, abdominal pain, weakness, and potential heart rate abnormalities.

Escalation note

Ingestion of any part of the plant can be serious. Please contact your veterinarian or an animal poison control center immediately if you suspect ingestion.

Safer alternatives

No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.

Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Japanese Andromeda (Pieris japonica) contains grayanotoxins which can cause vomiting, diarrhea, and cardiovascular issues in pets.

Cats & dogs pagedogs pageMy cat ate Japanese Andromeda

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