Poison help
  1. Home
  2. Toxic plants
  3. Plants toxic to dogs
  4. Basil

Is Basil Toxic to Dogs?

✓ ASPCA-listed toxicity✓ Sources citedUpdated 2026-10-10

Non-toxic

No, basil is not toxic to dogs

Basil is non-toxic to cats and dogs (ASPCA). A small amount of fresh basil is fine. Pesto is not, because it usually contains garlic and lots of oil and cheese.

Basil and dogs: key facts

Toxic to dogs?Non-toxic
Toxic to cats?Non-toxic
Scientific nameOcimum basilicum
Also calledsweet basil, St. Josephwort
Toxic compoundNone known
Toxic partsNot toxic
Plant typeHerb

What happens if a dog eats basil?

  • Mild stomach upset if a lot is eaten

Why basil is considered safe

Basil is not known to contain compounds that are poisonous to dogs. That does not mean dogs should eat it: dogs cannot digest large amounts of plant fiber, so eating a lot of any plant can cause a short bout of vomiting or diarrhea.

What to do if your dog ate basil

  1. Remove any remaining plant material from your dog's mouth and move the plant out of reach.
  2. Offer fresh water. Mild vomiting from plant fiber usually settles within a few hours.
  3. Check the pot: fertilizer sticks, systemic pesticides, slug bait and cocoa mulch can be more dangerous than the plant itself.
  4. Call your vet if vomiting or diarrhea lasts more than 24 hours, or if your dog seems lethargic.

When treatment is needed

Treatment is rarely needed. If vomiting or diarrhea lasts more than a day, or your pet seems unwell, call your vet, as something else may be going on (for example fertilizer, pesticide or a swallowed piece of pot).

How to keep your dog away from basil

  • Place basil on high shelves or in hanging planters out of reach of paws and tails, or in a room your dog cannot enter.
  • Give your dog something better to chew: chew toys and puzzle feeders reduce boredom chewing.
  • Pick up fallen leaves, petals and pollen promptly, and empty vases where pets can reach them.

Basil and dogs: FAQ

Is basil poisonous to dogs?

Basil is non-toxic to dogs, according to the ASPCA. Eating a lot of any plant can still cause mild stomach upset.

Can I keep basil in a house with dogs?

Yes. Basil is considered pet-safe. Keep it where your dog cannot knock it over or dig in the soil, and avoid pesticide or fertilizer products pets could lick.

Is basil toxic to cats too?

No. Basil is also non-toxic to cats (ASPCA).

Other plants toxic to dogs

Sources

Toxicity ratings follow the ASPCA Animal Poison Control Center plant lists. Severity depends on the amount eaten, the part of the plant and your dog's size and health. When in doubt, call your vet.

Quick answer

Non-toxic

Basil is non-toxic to dogs, according to the ASPCA. Eating a lot of any plant can still cause mild stomach upset.

Is basil toxic to cats? →
All plants toxic to dogs →

📌 Save this guide to Pinterest