Lavender — (c) Andrey Zharkikh, some rights reserved (CC BY)
Photo by (c) Andrey Zharkikh, some rights reserved (CC BY)iNaturalistCC BY
Pet safety reference

Lavender

Lavandula angustifolia

Lavender is a popular aromatic herb known for its fragrant purple flowers and silvery-green foliage. While widely used in essential oils and culinary applications, it contains compounds that can cause gastrointestinal distress if ingested by pets.

Common LavenderEnglish LavenderLavandula angustifoliaLavandula officinalis
Light
Full sun
Habit
Shrubby perennial
Care
Moderate

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, decreased appetite, and potential lethargy.

Escalation note

Ingestion typically results in mild to moderate gastrointestinal upset. Please contact your veterinarian if your cat consumes a significant amount of the plant.

Dogsconcern notes

Common signs

Vomiting, diarrhea, and potential drooling.

Escalation note

Symptoms are generally related to stomach irritation. If your dog shows signs of distress or persistent vomiting, consult a veterinarian immediately.

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Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Lavender contains linalool and linalyl acetate, which can be toxic to dogs and cats if ingested in large quantities.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Lavandula angustifolia is a perennial herb valued for its fragrant flowers and essential oils.

cats safety pageMy cat ate Lavenderdogs safety pageMy dog ate Lavender

Questions about Lavender

Is lavender toxic to cats?

Yes, lavender is considered potentially toxic to cats. Ingestion can cause mild to moderate gastrointestinal upset, and concentrated lavender essential oil poses a higher risk than the plant itself.

What symptoms does lavender cause in cats?

After chewing lavender, cats most commonly show nausea, vomiting, decreased appetite, and lethargy. Exposure to concentrated lavender essential oil can additionally cause drooling, tremors, wobbliness (ataxia), and respiratory irritation.

What should I do if my cat ate lavender?

Move your cat away from the plant and wipe any plant material from their mouth. If lavender essential oil got on their fur or skin, wash it off with mild dish soap to prevent further absorption. Do not induce vomiting unless directed by a vet or ASPCA Poison Control (888-426-4435).

How long does lavender toxicity last in cats?

GI signs from chewing the plant typically appear within a few hours and resolve within 24–48 hours with supportive care. Essential-oil exposure can cause symptoms that take 3–7 days to fully resolve, so call your vet or ASPCA Poison Control (888-426-4435) if your cat was exposed to oil, potpourri, or has eaten more than a leaf or two.

Is lavender toxic to dogs?

Lavender is potentially toxic to dogs. The plant contains compounds that can cause gastrointestinal irritation, leading to vomiting, diarrhea, and drooling. Symptoms are generally mild after chewing the plant, but concentrated lavender essential oil poses a higher risk and can cause more serious effects.

What happens if a dog eats lavender?

After chewing lavender, a dog will most commonly show nausea, vomiting, diarrhea, and loss of appetite due to stomach irritation. Mild GI signs typically begin within a few hours and clear within 24–48 hours. Ingestion of concentrated lavender essential oil can additionally cause drooling, lethargy, unsteady walking (ataxia), and tremors, with recovery taking up to 3–7 days.

What should I do if my dog ate lavender?

Take the plant away and rinse your dog's mouth out with water. If lavender essential oil contacted the skin or coat, bathe the affected area with a mild dish soap to limit absorption. Do not induce vomiting unless directed by a veterinarian or poison control. Call a vet or ASPCA Animal Poison Control (888-426-4435) if your dog ate a large amount, swallowed any essential oil, or is showing persistent vomiting, weakness, or wobbliness.

Is lavender essential oil more dangerous to dogs than the plant itself?

Yes, lavender essential oil is significantly more concerning than the plant. Chewing the plant typically causes mild, short-lived GI upset that resolves within 24–48 hours. Essential-oil exposure — whether ingested or absorbed through the skin — can additionally trigger drooling, lethargy, ataxia, and tremors, and may take 3–7 days to fully resolve. Call ASPCA Poison Control (888-426-4435) immediately if your dog swallowed or had significant skin contact with lavender essential oil.

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