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Is Laurel Toxic to Dogs? Mountain and Cherry Laurel Risks

PawAI Lab
7 min read

Learn why several common plants called laurel, including mountain laurel and cherry laurel, are considered toxic to dogs, what signs may develop after exposure, and the steps a veterinarian may recommend.

Quick Answer

Yes, plants commonly called laurel are toxic to dogs. Mountain laurel (Kalmia latifolia) contains grayanotoxins, and cherry laurel (Prunus laurocerasus) contains cyanogenic glycosides, both of which can cause serious illness. Signs may include drooling, vomiting, weakness, and in severe cases breathing difficulty or collapse. If your dog has eaten laurel, contact a veterinarian or animal poison-control service immediately.

Before using any tool, contact a veterinary professional if your dog may have eaten laurel.

  • US: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • UK: Animal PoisonLine (01202 509000) or your nearest veterinary emergency clinic
  • Canada: ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661)
  • AU: Animal Emergency Centre or your regular vet
  • EU: Contact your nearest veterinary emergency service

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Safety Verdict

Toxic. The name laurel is used for several unrelated plants, and more than one of them can be hazardous to dogs. Mountain laurel (Kalmia latifolia) and related Kalmia species contain grayanotoxins, compounds that can interfere with sodium channels in nerve and heart cells. Cherry laurel (Prunus laurocerasus), an evergreen shrub widely used in hedges, contains cyanogenic glycosides that can release cyanide when plant tissue is damaged or chewed.

Both types of laurel can cause serious illness in dogs. All parts of these plants, including leaves, stems, flowers, and in the case of cherry laurel the seeds inside the fruit, may be toxic. Because toxin concentration can vary with plant age, season, and species, no reliable safe amount can be established. Any known or suspected ingestion should be treated as potentially serious.

What Should the Owner Do Now?

  1. Contact a veterinarian or animal poison-control service immediately. The type of laurel involved can affect the approach, so professional guidance is important.
  2. Do not induce vomiting unless a veterinarian or poison-control professional directly instructs you to do so. Improper induction can cause additional harm.
  3. Collect relevant information (see the section below) so the veterinary team can assess the situation accurately.
  4. Do not give food, milk, salt, charcoal, or any home remedy. These are not proven treatments for laurel poisoning and may worsen the situation.
  5. Follow the veterinarian's instructions regarding examination, monitoring, or bringing in a sample of the plant for identification.

If you are unsure which type of laurel your dog ate, professional consultation is still recommended, because both mountain and cherry laurel can be hazardous.

What Signs May Occur?

Signs of laurel poisoning in dogs may develop within a few hours of ingestion, though the timeline can vary. Because mountain laurel and cherry laurel contain different toxins, the signs may overlap but can also differ in severity and progression.

Signs associated with mountain laurel (grayanotoxins) may include:

  • Drooling or excessive salivation
  • Vomiting
  • Nasal discharge or tearing
  • Weakness or reluctance to move
  • Slow heart rate or irregular heartbeat
  • Wobbly or unsteady gait

Signs associated with cherry laurel (cyanogenic glycosides) may include:

  • Drooling and vomiting
  • Bright red gums that may later darken
  • Difficulty breathing or rapid breathing
  • Weakness, collapse, or shock

In severe cases, both types of laurel can affect breathing and circulation, which may become life-threatening. This is why prompt veterinary care is important, even when a dog initially appears normal.

What Information Should Be Ready?

When you contact a veterinarian or poison-control service, having the following details available can help them assess the situation more efficiently:

  • Dog's details: species, breed, approximate age, and body weight
  • Plant involved: mountain laurel, cherry laurel, or unknown; whether it is a garden ornamental or wild plant
  • Part of plant consumed: leaves, stems, flowers, fruit, or seeds
  • Estimated amount: best guess of how much was chewed or swallowed
  • Time of ingestion: when the exposure occurred, or the window of time during which it may have happened
  • Current symptoms: any drooling, vomiting, weakness, breathing changes, or gum color changes
  • Plant sample: if available, a photograph or cutting of the plant to help confirm identification
  • Medical history: any pre-existing heart or breathing conditions, current medications, or other health concerns

Provide honest estimates rather than precise numbers. The veterinary team can work with approximate information to determine the best course of action.

Differences That May Affect Risk

Laurel toxicity risk in dogs is influenced by several factors, but none of them allow for a reliable prediction of outcome:

  • Plant type: Mountain laurel and cherry laurel contain different toxins, which can produce different signs and require different approaches.
  • Part and maturity of plant: Toxin concentration can vary between leaves, stems, flowers, and seeds, and may change with the season.
  • Amount ingested: Larger ingestions may be more likely to produce severe signs, but individual sensitivity also plays a role.
  • Body size: Smaller dogs may be at greater risk from a given amount of plant material, but toxicity can occur in dogs of any size.
  • Pre-existing conditions: Dogs with existing heart or respiratory conditions may be more vulnerable to the effects of laurel toxins.

Because of these uncertainties, any known or suspected ingestion should be treated as potentially serious, regardless of the dog's size or the amount involved.

When to Contact a Veterinarian

Contact a veterinarian or animal poison-control service immediately if your dog has eaten or chewed on laurel. Do not wait for symptoms to appear.

Emergency signs that require urgent veterinary attention include:

  • Persistent vomiting or drooling
  • Weakness, wobbliness, or collapse
  • Difficulty breathing or changes in breathing pattern
  • Changes in gum color
  • Slow, fast, or irregular heartbeat

Non-urgent follow-up: If the ingestion occurred hours or days ago and your dog appears normal, a veterinary examination is still recommended to assess for delayed effects and to confirm that no intervention is needed.

FAQ

What is the difference between mountain laurel and cherry laurel?

Mountain laurel (Kalmia latifolia) contains grayanotoxins that can affect nerves and heart function, while cherry laurel (Prunus laurocerasus) contains cyanogenic glycosides that can release cyanide. Both are toxic to dogs, but the signs and veterinary approach may differ. Identifying the plant can help a veterinarian provide more specific guidance.

Are all laurel plants toxic to dogs?

Several plants called laurel are toxic to dogs, including mountain laurel and cherry laurel. Other plants with laurel in their common name may have different toxicity profiles. Because the name is used for unrelated plants, it is best to identify the specific species and consult a veterinarian before assuming any laurel is safe.

Can laurel poisoning in dogs be treated?

Yes, with prompt veterinary care. A veterinarian may provide supportive care such as intravenous fluids, medications to manage heart or breathing effects, and monitoring. Outcomes are generally better when treatment begins before severe signs develop.

Are the berries of cherry laurel dangerous to dogs?

Yes. The fruit of cherry laurel, and particularly the seeds inside it, can contain cyanogenic glycosides. Chewing or crushing the seeds can release compounds that may cause serious illness. Any ingestion of cherry laurel fruit should be discussed with a veterinarian.

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Disclaimer

This article and the PawAI Toxicity Checker provide general safety information and cannot determine an individual pet's toxicity risk or replace a veterinarian or animal poison-control service. If exposure may have occurred, contact an appropriate professional promptly, even if your pet appears well.

Written by PawAI Lab