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Are Irises Toxic to Dogs?

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

Mildly toxic

Yes, irises are mildly toxic to dogs

Irises contain pentacyclic terpenoids, concentrated in the rhizomes and bulbs. Dogs that dig them up are more likely to be affected than pets that nibble the flowers.

Irises and dogs: key facts

Toxic to dogs?Mildly toxic
Toxic to cats?Mildly toxic
Scientific nameIris spp.
Also calledflag, snake lily, water flag
Toxic compoundPentacyclic terpenoids (irisin)
Toxic partsAll parts; the rhizomes and bulbs are the most toxic
Signs usually startUsually within a few hours
Plant typeFlower

Symptoms of irises poisoning in dogs

  • Drooling
  • Vomiting
  • Diarrhea
  • Lethargy

Why irises are toxic to dogs

These compounds are concentrated in the rhizomes and bulbs and irritate the gut, causing drooling, vomiting and diarrhea.

What to do if your dog ate irises

  1. Remove plant pieces from your dog's mouth and move dogs away from the plant. Wipe sap or pollen off the fur and paws with a damp cloth.
  2. Call your vet or animal poison control for advice: ASPCA Animal Poison Control: (888) 426-4435 · Pet Poison Helpline: (855) 764-7661.
  3. Identify the plant. Take a photo or bring a piece (or the plant label) to the vet, and estimate how much was eaten and when.
  4. Do not make your dog vomit unless a vet tells you to. Home remedies such as hydrogen peroxide or salt can cause serious harm.
  5. Watch for drooling, vomiting, diarrhea. Go to a vet if signs are severe, last more than a day, or your dog has trouble breathing or swallowing.

Treatment and outlook

Supportive care is usually enough. Dogs that ate a lot of rhizome should be seen by a vet.

How to keep your dog away from irises

  • Place irises 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.
  • In the garden, fence off beds, supervise dogs that dig, and store bulbs in a closed container before planting.

Pet-safe alternatives to irises

If you love flowers, these are listed as non-toxic to dogs by the ASPCA:

See the full list of plants safe for dogs.

Irises and dogs: FAQ

Are irises poisonous to dogs?

Irises are mildly toxic to dogs. Pentacyclic terpenoids (irisin) can cause drooling and vomiting, but serious poisoning is uncommon.

What part of irises is toxic to dogs?

All parts; the rhizomes and bulbs are the most toxic.

Can dogs die from eating irises?

It is very unlikely. Irises usually cause mild, short-lived signs. See a vet if signs are severe or your dog has trouble breathing or swallowing.

How long after eating irises will my dog show symptoms?

Usually within a few hours.

Are irises toxic to cats too?

Yes, irises are mildly toxic to cats.

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

Mildly toxic

Irises are mildly toxic to dogs. Pentacyclic terpenoids (irisin) can cause drooling and vomiting, but serious poisoning is uncommon.

Are irises toxic to cats? →
All plants toxic to dogs →

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