ADULTPLANTS

Is english ivy toxic to cats?

Hedera helix

Yes

Yes. English ivy is toxic to cats, graded medium severity by NC State Extension. The agent is triterpenoid saponins. Call your vet if a cat has eaten any.

Poison severity Medium as published by the NC State Extension Gardener Plant Toolbox. Their grade, not ours.
If your cat has eaten some
  1. Take any remaining plant material out of their mouth and rinse the mouth with water.
  2. Call someone. Your own vet first. Otherwise ASPCA Animal Poison Control on (888) 426-4435 or the Pet Poison Helpline on (855) 764-7661 — both charge a fee.
  3. Take a photo of the plant, and note roughly how much was eaten and when. It is the first thing you will be asked.
  4. Do not make your cat vomit unless a vet tells you to.

What it does, and why

The agent is triterpenoid saponins.

A saponin subclass concentrated in the leaves and berries, irritating both the gut lining and skin on contact.

Gut upset after eating; contact dermatitis in people who prune it bare-handed.

Worth watching for. Berries carry more than leaves, so a berry-eating dog is the higher-dose case.

Reported signs

Signs as listed by the ASPCA under Hedera helix. Not every animal shows all of them.

What each authority says

What each authority says 2 sources concur
ASPCA
Toxic to cats and dogs · triterpenoid saponins
NC State Extension
Poison severity: Medium · Triterpenoid saponins and polyacetylene compounds
DISPLAY — in-content responsive

What to keep instead

Species in this database listed non-toxic to cats and dogs, chosen for a similar look or similar care rather than at random.

PlantFamilyWaterDifficulty
Wax plantHoya carnosa Apocynaceae 10–18d 2/5
Baby rubber plantPeperomia obtusifolia Piperaceae 9–14d 1/5
Chinese money plantPilea peperomioides Urticaceae 6–11d 2/5

Swapping the plant is the only measure that reliably works. Height and hanging baskets buy less time than people expect with a determined cat.

The other animal

Looking for dogs? See is english ivy toxic to dogs. Full care details are on the english ivy species entry.

Sources

  1. ASPCA Animal Poison Control — Hedera helix Checked 2026-09-11.
  2. North Carolina Extension Gardener Plant Toolbox — Hedera helix Checked 2026-09-11.
  3. Royal Botanic Gardens Kew, Plants of the World Online — Hedera helix Accepted name and family. Checked 2026-09-11.
  4. ASPCA Animal Poison Control Center, (888) 426-4435 — emergency line, fee applies

Compiled and edited by Tony Valcarcel · 2026-09-11
Tony Valcarcel is the editor and publisher of this database, not a veterinarian. Severity is reproduced from the authority that published it and is never originated here. How this is sourced.
This page is a reference, not a diagnosis. In an emergency, call rather than read.