Poinsettia Toxic?

Updated 2026-03-06| 4 min read| 3,431 found this helpful

All poinsettia parts containing milky sap are toxic to cats, dogs, and horses, due to stable irritant triterpene compounds

While toxicity is often overrated, rare severe adverse effects including fatalities have been reported in dogs and cats

Non-toxic poinsettia cultivars are available but cannot be visually differentiated from toxic variants

FAQ

Is Poinsettia toxic to Humans?

Mild mucous membrane and gastrointestinal irritation, occasional vomiting, effects are generally mild and self-limiting (Low)

Is Poinsettia toxic to Cats?

Repeated vomiting within 1 hour of ingestion, elevated pulse, hypothermia, apathy, ataxia, delayed reflexes, dilated pupils, excessive salivation, rare fatalities (High)

Is Poinsettia toxic to Dogs?

Mild gastroenteritis with vomiting, inappetence, possible hypothermia, tremors, pulmonary edema, rare kidney failure, coma and fatalities in older individuals (High)

Is Poinsettia toxic to Horses?

Oral and gastrointestinal irritation, vomiting, potential systemic effects including hypothermia and respiratory distress in severe cases (High)

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Toxicity Details

Humans

Low

Mild mucous membrane and gastrointestinal irritation, occasional vomiting, effects are generally mild and self-limiting

Cats

High

Repeated vomiting within 1 hour of ingestion, elevated pulse, hypothermia, apathy, ataxia, delayed reflexes, dilated pupils, excessive salivation, rare fatalities

Dogs

High

Mild gastroenteritis with vomiting, inappetence, possible hypothermia, tremors, pulmonary edema, rare kidney failure, coma and fatalities in older individuals

Horses

High

Oral and gastrointestinal irritation, vomiting, potential systemic effects including hypothermia and respiratory distress in severe cases

Toxicity Snapshot

Toxic PartsAll plant parts that contain milky irritant sap; the plant has a sharp, unpleasant taste so it is rarely consumed in large quantities

Exposure RouteIngestion of plant material, direct contact of sap with skin, eyes, or other mucous membranes

Toxic CompoundsGermanicol; Beta-Amyrin; Other related triterpene compounds

First Aid & Prevention

First 30 Minutes

• Remove any remaining poinsettia plant material from the exposed individual's mouth, skin, or fur immediately
• Rinse affected skin, eyes, or oral mucous membranes with cool, clean water for 10 to 15 minutes to reduce sap irritation
• If ingested, offer small sips of plain water to dilute irritant sap; do not induce vomiting unless directed by a medical/vet professional

Contact Vet Immediately

• Your cat, dog, or horse has ingested any quantity of poinsettia plant material
• Your pet exhibits persistent vomiting, apathy, unsteady gait, tremors, or difficulty breathing after exposure
• Your pet has abnormal body temperature, dilated pupils, or excessive salivation following poinsettia contact/ingestion

Prevention

• Store poinsettia plants out of reach of children, pets, and livestock, as toxic and non-toxic cultivars are visually indistinguishable
• Wear disposable gloves when handling or pruning poinsettias to avoid contact with irritant milky sap
• Dispose of all poinsettia prunings and fallen leaves securely to prevent accidental ingestion by animals

Treatment & Prognosis

• Administer decontamination measures (e.g. activated charcoal for recent ingestions) as directed by a qualified medical or veterinary provider
• Provide symptomatic supportive care including anti-emetics for persistent vomiting, fluid therapy for dehydration, and temperature regulation for hypothermia
• Monitor organ function (particularly kidney function in exposed dogs) in severe cases to catch and address complications early

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Professional Toxicology

Scientific NameEuphorbia pulcherrima

AliasesWeihnachtsstern、Adventsstern、Poinsettie、Euphorbe superbe、Stella di Natale

Toxicity Grade

HumansLow

CatsHigh

DogsHigh

HorsesHigh

Target Organs

Gastrointestinal tractKidneys (dogs)Respiratory systemNervous system

Mechanism of Action

• Irritant triterpene compounds in the milky sap cause direct tissue irritation to mucous membranes and the gastrointestinal tract on contact or ingestion

• Triterpene compounds remain stable during storage and drying, so dried poinsettia material remains fully toxic

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Small mammals (rabbits, guinea pigs, etc.): Expected to experience similar gastrointestinal irritation and systemic effects as cats and dogs if poinsettia is ingested

Ruminant livestock (cattle, sheep, goats): No specific exposure data is available, but assume similar toxicity as horses, with potential for gastrointestinal and systemic harm

Confusion Risk

The following plants look similar and may be confused:

Other spurge species Other Euphorbia spp.

All Euphorbia species produce similar irritant milky sap, and many share overlapping visual traits with poinsettias, making differentiation difficult for non-experts

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Related Toxic Plants

Castor bean

Ricinus communis

Severe toxicity

Manchineel

Hippomane mancinella

Severe toxicity

Crown-of-thorns

Euphorbia milii

Moderate to High toxicity

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Data Sources

1. ASPCA Animal Poison Control

2. 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.