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Pet safety

Is Common Lilac toxic to dogs?

Syringa vulgaris

Mildly toxic to dogs

Mildly. The ASPCA lists common lilac as mildly toxic to dogs — a chewing dog typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. This classification follows the ASPCA Toxic and Non-Toxic Plant List. True lilac (Syringa vulgaris) is not individually listed in the ASPCA's toxic/non-toxic plant database; it is widely regarded as non-toxic but is not ASPCA-confirmed, so treat with caution and verify with a vet. Critically, do NOT confuse it with the unrelated Persian lilac (Melia azedarach), which the ASPCA lists as toxic — large ingestions of true lilac may still cause mild GI upset.

What to do if your dog ate common lilac

  1. Remove any plant material from your dog's mouth and move common lilac out of reach.
  2. Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
  3. Do not induce vomiting unless a vet or poison-control specialist instructs you to.
  4. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
  5. Bring a leaf or photo of common lilac to the appointment so it can be treated correctly.

General guidance, not veterinary advice. If you think your dog has eaten common lilac, contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.

Is common lilac toxic to dogs? — FAQ

Is common lilac toxic to dogs?

Mildly. The ASPCA lists common lilac as mildly toxic to dogs — a chewing dog typically gets mouth irritation, drooling, and vomiting rather than a medical emergency, but it is still best kept out of reach. True lilac (Syringa vulgaris) is not individually listed in the ASPCA's toxic/non-toxic plant database; it is widely regarded as non-toxic but is not ASPCA-confirmed, so treat with caution and verify with a vet. Critically, do NOT confuse it with the unrelated Persian lilac (Melia azedarach), which the ASPCA lists as toxic — large ingestions of true lilac may still cause mild GI upset.

What are the symptoms if a dog eats common lilac?

True lilac (Syringa vulgaris) is not individually listed in the ASPCA's toxic/non-toxic plant database; it is widely regarded as non-toxic but is not ASPCA-confirmed, so treat with caution and verify with a vet. Critically, do NOT confuse it with the unrelated Persian lilac (Melia azedarach), which the ASPCA lists as toxic — large ingestions of true lilac may still cause mild GI upset. Signs usually appear soon after chewing rather than hours later — watch for drooling, pawing at the mouth, vomiting, loss of appetite, or unusual lethargy after your dog has had access to common lilac.

What should I do if my dog ate common lilac?

Stay calm. Remove any plant from your dog's mouth and take the plant away. Note how much was eaten and when, and do not induce vomiting unless told to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice; a leaf or photo helps the vet treat it correctly.

Is common lilac toxic to cats too?

The ASPCA classification Growli uses applies to both cats and dogs: Common Lilac is mildly toxic to cats as well. See the full common lilac pet-safety guide for both species.

What is a dog-safe alternative to common lilac?

For a similar look without the risk, see the best dogs-safe plants list — every plant there is ASPCA non-toxic to cats and dogs.

Full common lilac pet-safety