Cats & Dogs
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources

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.
Safety status
Cats & Dogs
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources
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.
Cats — concern 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.
Dogs — concern 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.
Safer alternatives
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ASPCA Toxic Plant List
toxicology · 99% reliability
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
Lavandula angustifolia is a perennial herb valued for its fragrant flowers and essential oils.
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.
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.
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).
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.
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.
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.
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.
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.
Same safety verdict

Monstera deliciosa is a popular tropical houseplant known for its large, fenestrated leaves and vining growth habit. It contains insoluble calcium oxalate crystals that can cause irritation if ingested by pets.
Potentially toxic for cats & dogs.

Dracaena trifasciata is a popular, hardy houseplant known for its stiff, sword-like leaves with striking yellow margins. It is widely appreciated for its air-purifying qualities and ability to thrive in various indoor conditions.
Potentially toxic for cats & dogs.

Philodendrons are popular tropical foliage plants known for their lush, heart-shaped or split leaves. They contain insoluble calcium oxalate crystals that can cause irritation if ingested.
Potentially toxic for cats & dogs.

Dieffenbachia is a popular tropical houseplant known for its large, variegated leaves. It contains insoluble calcium oxalate crystals that can cause irritation if ingested or chewed.
Potentially toxic for cats & dogs.
Same growing conditions

Leeks are members of the onion family that contain compounds capable of damaging red blood cells in pets. Ingestion of any part of the plant can lead to gastrointestinal upset and potential anemia.
Potentially toxic for cats & dogs.

Stevia is a perennial herb widely cultivated for its intensely sweet leaves, which are used as a natural sugar substitute. It is generally considered safe for pets, though large ingestions of fibrous plant material may cause minor digestive discomfort.
Generally safe for cats & dogs.

Borage is a flowering herb known for its star-shaped blue flowers and hairy foliage. While often used in culinary applications for humans, it contains pyrrolizidine alkaloids that can be harmful to pets if ingested.
Potentially toxic for cats & dogs.

Coreopsis is a popular genus of flowering plants in the aster family, widely grown for their cheerful, daisy-like blooms. They are generally considered safe for household pets, though ingestion of large amounts of plant material may cause minor digestive discomfort.
Generally safe for cats & dogs.