Is Hosta Toxic to Cats and Dogs? | Petybuzz

Q: Is hosta toxic to cats?

Mildly toxic to cats. Hostas can cause stomach upset in pets. The ASPCA says veterinary care is typically not needed unless the upset is more than mild.

Q: Is hosta toxic to dogs?

Mildly toxic to dogs. Hostas can cause stomach upset in pets. The ASPCA says veterinary care is typically not needed unless the upset is more than mild.

Is Hosta Toxic to Cats and Dogs?

Hosta

Cats

🟡 Mildly toxic

Dogs

🟡 Mildly toxic

Short answer: Hostas can cause stomach upset in pets. The ASPCA says veterinary care is typically not needed unless the upset is more than mild.

Think your pet ate hosta? call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435.

Signs to watch for

Stomach upset (vomiting, diarrhea)

Why it’s a problem

Toxic principle: Not specified in our source.

The ASPCA includes hostas in its top 10 toxic plants list.

Frequently asked questions

My dog ate hosta leaves. What should I do?

Watch for vomiting or diarrhea. Call your vet if the upset is more than mild or your dog seems unwell.

Other plants

Poinsettia
Hydrangea
Fiddle Leaf Fig
Easter Lily
Daylily
Peace Lily

Sources

ASPCA: Top 10 Toxic Plants for Pets

Last checked: 2026-11-11. General information, not veterinary advice.