Can Cats Eat Pencil Cactus?

No — Pencil Cactus is moderately toxic to cats

Cats should not eat or be near Pencil Cactus (Euphorbia tirucalli). It contains diterpene esters (phorbol esters) which can cause severe skin and eye irritation, oral blistering, vomiting in cats.

What Happens if a Cat Eats Pencil Cactus?

Symptoms typically appear within immediate:

  • Severe skin and eye irritation
  • Oral blistering
  • Vomiting
  • Temporary blindness if sap contacts eyes

My Cat Ate Pencil Cactus — What Should I Do?

Flush eyes immediately with water if sap contacts them. Wash skin thoroughly. See vet if oral exposure or eye damage suspected.

Key Facts About Pencil Cactus and Cats

No — moderate toxicity

No — moderate toxicity

all parts (milky sap)

Euphorbia tirucalli

Cat-Safe Alternatives to Pencil Cactus

If you love the look of Pencil Cactus, consider these cat-safe alternatives:

✓ Haworthia ✓ Echeveria ✓ Burro's Tail

Sources: ASPCA Animal Poison Control Center, Pet Poison Helpline, Merck Veterinary Manual. View full Pencil Cactus profile.