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Toxic Plants For Cats & Dogs

A lot of household plants can be toxic to cats and dogs. Some of these plants can be mild in their effects but some can be deadly! If your pet eats any of the plants here please check how serious it might be and contact the clinic if you are at all worried.

(N.B. This is not a comprehensive list and does not represent plants that might cause allergic or anaphylactic reactions.)

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Aloe Vera

This is a popular household plant, often kept for it's medicinal properties.

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Daffodils

The pre-cursor of Spring...

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Hydrangeas

Hydrangeas

A popular garden plant, these flowers change colour with the pH of the soil.

Image by Clement BB

Mistletoe

The Christmas cheer continues with another toxic festive favorite. Kissing is fine but eating is not.

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Poinsettias

Christmas plants seem to be well represented here. Poinsettias can be irritant if eaten.

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Azaleas

One of the most popular families of garden plants with 1000's of varients.

Fern leaf

Ferns

Green leafy plants that thrive in shadey environments.

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Image by Zhao Yangjun

Irises

A perennial flowering plant that grows from bulbs or creeping rhizomes.

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Nightshades

A large family of plants including tomatoes and potatoes. Then there is Deadly Nightshade...

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Poppies

The classic Rememberance Day flower also contains alkaloids that can poison cats or dogs.

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Chrysanthemum

A popular inclusion in bouquets but toxic to dogs and especially toxic to cats.

Image by Alistair MacRobert

Holly

A classic Christmas decoration that can ruin the season.

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Image by Jerry Wang

Ivy

A climbing ground cover. Some varieties can be toxic.

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Oleander

A temperate and sub-tropical garden favorite with delicate flowers, usually pink or white.

Image by Unk495 Wu

Sago Palm

Rarely seen in Tassie, the Sago Palm is a common source of poisonings up North.

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Cyclamen

An attractive garden and potted indoor plant.

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Blooming grape hyacinths at the Memphis

Hyacinths

A Spring-blooming perennial found in many gardens.

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Lilies

A commonly found flower both in gardens and bouquets. Highly toxic to cats.

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Peonies

Peonies (or Peonie Roses) are a flowering shrub that is commonly used in bouquets.

Image by Yoksel 🌿 Zok

Tulips

So colourful that they have their own festival at Table Cape. Also toxic to cats and dogs.

© 2025 by Sheffield Veterinary Clinic.

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