Drooping laurel Toxic?

Updated 2026-03-06| 5 min read| 3,639 found this helpful

All parts of the drooping laurel plant are toxic, with grayanotoxins as the primary toxic compounds.

The plant has extremely severe toxicity for birds, and high toxicity risk for most other animal species.

Poisoning symptoms typically onset within 6 hours of ingestion, and can be fatal without prompt appropriate treatment.

FAQ

Is Drooping laurel toxic to Humans?

No species-specific data reported; grayanotoxin ingestion typically causes salivation, nausea, vomiting, abdominal pain, dizziness, arrhythmia, and potential collapse. (Moderate)

Is Drooping laurel toxic to Cats?

No explicit species-specific data documented; expected symptoms include salivation, vomiting, diarrhea, lethargy, abnormal heart rate, and seizures in severe cases. (High)

Is Drooping laurel toxic to Dogs?

No explicit species-specific data documented; expected symptoms include excessive drooling, vomiting, abdominal pain, irregular heartbeat, weakness, and collapse. (High)

Is Drooping laurel toxic to Horses?

No explicit species-specific data documented; expected symptoms include salivation, regurgitation, colic, diarrhea, abnormal heart rhythm, and seizures. (High)

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Toxicity Details

Humans

Moderate

No species-specific data reported; grayanotoxin ingestion typically causes salivation, nausea, vomiting, abdominal pain, dizziness, arrhythmia, and potential collapse.

Cats

High

No explicit species-specific data documented; expected symptoms include salivation, vomiting, diarrhea, lethargy, abnormal heart rate, and seizures in severe cases.

Dogs

High

No explicit species-specific data documented; expected symptoms include excessive drooling, vomiting, abdominal pain, irregular heartbeat, weakness, and collapse.

Horses

High

No explicit species-specific data documented; expected symptoms include salivation, regurgitation, colic, diarrhea, abnormal heart rhythm, and seizures.

Toxicity Snapshot

Toxic PartsWhole plant, all plant parts are toxic

Exposure RouteIngestion of any plant part is the primary confirmed exposure route; no contact toxicity has been reported for this species.

Toxic CompoundsGrayanotoxin I (Acetylandromedol, Andromedotoxin, Rhodotoxin); Grayanotoxin III (Andromedol); Grayanotoxin II (Andromedenol); Grayanotoxins IV to XXI; Rhodojaponins; Grayanoside A; Pieroside A

First Aid & Prevention

First 30 Minutes

• Remove any remaining plant material from the mouth of the exposed person or animal immediately.
• Induce vomiting only if explicitly instructed by a medical or veterinary professional shortly after ingestion.
• Do not administer food, fluids, or home remedies unless advised by a qualified professional.

Contact Vet Immediately

• Any confirmed or suspected ingestion of any part of the drooping laurel plant.
• Onset of abnormal symptoms including excessive salivation, vomiting, irregular heart rate, or lethargy after potential exposure.
• Confirmed access to the plant by pets, livestock, or pet birds.

Prevention

• Avoid planting this species in areas accessible to pets, grazing livestock, or young children.
• Fence off wild growing patches of the plant in pastures or areas where animals roam freely.
• Learn to identify this plant and closely related toxic species to avoid accidental exposure.

Treatment & Prognosis

• Administer appropriate decontamination measures including activated charcoal as clinically indicated.
• Provide symptomatic care: analgesics for pain, antibiotics if aspiration pneumonia is diagnosed.
• Administer 20% intravenous lipid solution at 1.5ml/kg body weight over 5 minutes for severe poisoning cases.
• Administer atropine to treat bradycardia as required.
• Provide supportive care for respiratory, cardiac, and neurological symptoms as they present.

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Professional Toxicology

Scientific NameLeucothoe fontanesiana (Steud.) Sleumer

AliasesDog hobble、Fetterbush、Leucothoe catesbaei、Leucothoe walteri、Gebogene Traubenheide、Desfontaines Traubenheide

Toxicity Grade

HumansModerate

CatsHigh

DogsHigh

HorsesHigh

Target Organs

Gastrointestinal tractCardiovascular systemNervous systemRespiratory system

Mechanism of Action

• Grayanotoxins bind to and modify the function of voltage-gated sodium channels in cell membranes.

• This modification causes prolonged activation of sodium channels and persistent depolarization of excitable cells (nerve, muscle, cardiac tissue).

• Persistent depolarization leads to abnormal cardiac function, neurological impairment, and respiratory depression.

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Birds: Extremely severe toxicity: Ingestion of even small amounts can cause rapid onset of fatal poisoning.

Cattle: Symptoms onset within 6 hours of ingestion, lasting 1-2 days; presentations include apathy, respiratory depression, excessive salivation, vomiting, abdominal pain, arrhythmia, seizures, coma and death without treatment.

Confusion Risk

The following plants look similar and may be confused:

Other Leucothoe species Leucothoe spp.

Morphologically nearly identical to Leucothoe fontanesiana; all Leucothoe species are toxic, so misidentification does not reduce poisoning risk.

Pieris (Lavender heath) Pieris spp.

Member of the same Ericaceae family, has very similar leaf shape and growth habit, and is also highly toxic, leading to frequent misidentification.

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Related Toxic Plants

Azalea

Rhododendron indicum

Highly toxic

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Data Sources

1. CliniTox (Universität Zürich)

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.