Is Balloon plant poisonous to dogs and cats?

Updated 2026-09-30 · 1 sources

Based on: NC State Extension Gardener Plant Toolbox

Call a vet today

Balloon plant is poisonous to dogs and cats – call your vet today for advice if your pet has eaten any of it. The flowers, fruits, leaves, roots, sap, seeds and stems are listed as poisonous.

  • Dogs Call a vet today
  • Cats Call a vet today

What to do right now

  1. Call your vet or the nearest emergency vet for advice.
  2. Note which plant, which part, how much and when your pet ate or chewed it.
  3. Remove what is left and move the plant out of reach.
  4. Take a photo or a piece of the plant with you.

Don't

  • Do not make your pet vomit unless a vet tells you to.
  • Do not give your pet any human medicine.

Why it can be dangerous

NC State Extension lists Balloon plant as a problem for cats and dogs; eating it in quantity can cause stomach upset, nausea, vomiting, abdominal pain, diarrhea, weakness, lethargy and confusion, while milky sap can cause contact dermatitis and eye irritation.[1]

Signs to watch for

  • stomach upset
  • nausea or vomiting
  • abdominal pain
  • diarrhea
  • weakness
  • lethargy
  • confusion
  • skin or eye irritation
Scientific name
Gomphocarpus
Poisonous parts
flowers, fruits, leaves, roots, sap/juice, seeds, stems
If your pet is struggling to breathe, has collapsed, is having a seizure or can't stand up: go to the nearest vet now.

Not sure how serious it is?

OkPaw asks a few quick questions about your pet and tells you in 30 seconds whether it can wait. Free on Google Play for Android.

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Common questions

Is Balloon plant dangerous for cats too?

Yes. Balloon plant is listed as a problem for cats and dogs.[1]

What signs can eating Balloon plant cause?

It can cause stomach upset, nausea, vomiting, abdominal pain, diarrhea, weakness, lethargy and confusion.[1]

Can the milky sap cause problems?

Milky sap can cause contact dermatitis and eye irritation.[1]

Sources

  1. NC State Extension Gardener Plant Toolbox

How this page was made: written with the help of AI from the sources below, then checked claim by claim against those sources. Urgency levels follow OkPaw’s fixed safety rules. It is guidance, not a diagnosis. How we write our pages

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