Is Crape (Crepe) Myrtle Poisonous to Dogs or Cats?

Is crape myrtle toxic to dogs?

No. The ASPCA lists Crape Myrtle (Lagerstroemia indica) as non-toxic to dogs, cats and horses. Eating a lot of any plant material can still upset a dog's stomach.

Is crape myrtle toxic to cats?

No. The ASPCA lists Crape Myrtle (Lagerstroemia indica) as non-toxic to cats, dogs and horses. PetMD cautions that a non-toxic plant can still cause stomach upset if a cat eats a lot of it.

Known caveats

PetMD notes that while non-toxic plants will not cause poisoning, they may still lead to mild digestive upset such as vomiting or diarrhea if a dog eats a large amount (source).

For cats, PetMD says that a plant not being toxic does not mean it cannot pose other safety concerns: vomiting, diarrhea and a poor appetite are possible, and eating a large amount of plant material can risk a gastrointestinal blockage (source).

The ASPCA lists the plant as Crape Myrtle and also as Crepe Myrtle, in the family Lythraceae (source).

Symptoms to watch for

The ASPCA page lists no toxic principle or clinical signs. These are the general signs PetMD describes for non-toxic plants.

In dogs

• Mild digestive upset, such as vomiting or diarrhea, if a large amount is eaten (PetMD).

In cats

• Vomiting, diarrhea and a poor appetite if a cat eats it; PetMD also notes that a larger amount of any plant material can raise the risk of a gastrointestinal blockage.

What to do if your dog or cat ate it

1. Remove any plant material from your pet's mouth and move the plant out of reach.
2. Note what was eaten, roughly how much, and when. Keep a leaf or a photo of the plant handy.
3. Call your vet, the ASPCA Animal Poison Control Center at (888) 426-4435 (a consultation fee may apply), or Pet Poison Helpline at (855) 764-7661.
4. Do not induce vomiting unless a vet or poison line tells you to.
5. Follow your vet's advice. Your vet may suggest watching your pet at home or bringing them in for an exam.

Frequently asked questions

Is crape myrtle toxic to dogs?

No. The ASPCA lists Crape Myrtle (Lagerstroemia indica) as non-toxic to dogs. A large amount of any plant can still cause mild digestive upset.

Is crape myrtle toxic to cats?

No. The ASPCA lists Crape Myrtle as non-toxic to cats. PetMD notes that non-toxic plants can still cause vomiting, diarrhea and a poor appetite.

Is crepe myrtle spelled differently but the same plant?

The ASPCA lists the plant as Crape Myrtle and also as Crepe Myrtle, with the scientific name Lagerstroemia indica.

Can a non-toxic plant still make my pet sick?

Yes. PetMD says non-toxic plants can still cause mild digestive upset, such as vomiting or diarrhea, if a pet eats a large amount, and a large amount of any plant material can risk a blockage in cats.

Sources

• ASPCA: Crape Myrtle (Lagerstroemia indica): Toxicity line, family and scientific name.
• PetMD: 29 flowers and plants for dogs (reviewed by Jennifer Grota, DVM; updated Mar. 19, 2021): Plant listing and the mild-digestive-upset caveat for dogs.
• PetMD: flowers and plants for cats (reviewed by Melissa Witherell, DVM; updated Mar. 31, 2026): Plant listing and the caveat that non-toxic plants can still upset a cat's stomach.

Last reviewed: 2026-10-06. This is a household reference, not veterinary advice.