Plants bring colour, texture and life to our homes and gardens, but if you share your space with a curious cat or dog, it’s worth knowing which varieties could cause them harm.
Some plants may cause an upset stomach when chewed, while others can be much more dangerous. From popular houseplants such as monstera and snake plants to familiar garden favourites like daffodils and foxgloves, there are a few worth looking out for.
The good news is that you don’t need to give up on your love of gardening or greenery. Knowing which plants are poisonous to cats and dogs, and which safer alternatives to choose, can help you create a space that works for the whole household.
In this guide we will look at poisonous plants in the UK that cat and dog owners should know about, including common garden plants, houseplants and flowers that are toxic to cats and dogs, along with some pet-friendly options to consider.
Which plants are poisonous to cats and dogs?
There isn’t one single list of poisonous plants that applies equally to every pet. Some plants are particularly dangerous to cats, while others pose a greater risk to dogs. The effects can also vary depending on the plant, which part is eaten and how much your pet has swallowed.
Some of the plants that could be poisonous to cats or dogs include:
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Lilies: extremely dangerous to cats, with exposure potentially causing severe kidney damage.
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Daffodils: can cause illness in cats and dogs, particularly if the bulbs are eaten.
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Tulips: the bulbs contain the highest concentration of irritating and toxic compounds.
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Foxgloves: contain compounds that can affect the heart
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Yew: a highly poisonous garden plant that can cause serious illness
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Monstera: can irritate the mouth and digestive tract if chewed
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Snake plants: can cause gastrointestinal upset in cats and dogs
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Aloe vera: can cause vomiting, lethargy and other symptoms if eaten
This is not an exhaustive list, and some plants have similar common names despite being different species. If you’re unsure whether a plant is safe, check its botanical name against reliable veterinary guidance before bringing it into your home or garden.
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Which garden plants are poisonous to cats and dogs
A garden can contain all sorts of plants that look harmless but may be dangerous if your pet decides to investigate them. This doesn’t mean you need to avoid colourful borders altogether, but it helps to know which plants deserve a little extra attention.
Foxgloves: is foxglove poisonous to dogs?
Foxgloves are a familiar sight in cottage style gardens, with tall flower spikes in shades of pink, purple, white and cream. They’re also attractive to pollinators, making them a popular choice for wildlife-friendly planting.
However, foxgloves contain cardiac glycosides, which can affect the heart if eaten. Keep them away from cats and dogs that chew plants, and seek veterinary advice immediately if you suspect your cat or dog has eaten any part of one.
Daffodils and tulips
Daffodils and tulips bring welcome colour to the garden in spring, but both can be harmful to pets.
Daffodils contain toxic compounds, particularly in their bulbs, while tulip bulbs also contain substances that can cause irritation and illness. Dogs may be particularly tempted to dig up newly planted bulbs, so take care when planting them in areas your pet cana access.
If you’re planning a spring display, consider where your pets spend their time and whether bulbs can be kept safely out of reach.
Autumn crocuses
Autumn crocuses provide delicate flowers towards the end of the growing season, but the plant is highly toxic to cats and dogs. Eating any part can cause serious illness, so this is one to avoid in gardens used by pets.
It's worth checking plant labels carefully, as autumn crocus and spring flowering crocuses are different plants and should not be confused.
Yew
Yew is often used for hedging and evergreen structure, but it is highly poisonous to pets. Its toxic compounds can affect the heart, and eating parts of the plant can be fatal.
If you have established yew hedges, be mindful of fallen clipping and make sure they are cleared away safely after pruning.
Hydrangeas
Hydrangea are loved for their generous flowerheads and long summer colour, but they can be harmful if eaten. They contain compounds that can cause digestive symptoms and in larger exposures, more serious poisoning.
It’s sensible to discourage pets from chewing the leaves and flowers and to seek veterinary advice if you suspect they’ve eaten any.
Are tomato plants toxic to cats and dogs?
Growing your own tomatoes is rewarding, whether they’re planted in a greenhouse, raised bed or pot on the patio. However, the leaves and stems of tomato plants, along with unripe green fruit, can be toxic to cats and dogs.
Ripe tomatoes are a different matter, but it is best not to let pets nibble on the plant itself. Keep vegetable beds tidy and discourage curious pets from chewing the foliage.
Other poisonous outdoor plants to know about
There are several other garden plants worth checking before planting, including:
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Azaleas and rhododendrons: can cause serious poisoning if eaten
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Ivy: can cause digestive upset and other symptoms
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Oleander: highly toxic and potentially life threatening
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Laburnum: its seeds and other parts can be poisonous
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Rhubarb leaves: harmful if eaten, whether raw or cooked
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Holly: berries and leaves can cause illness if eaten
The risk varies between species and plant parts, so this list is a starting point rather than a complete guide to every poisonous plant in the UK.
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Poisonous houseplants: which indoor plants are toxic to cats and dogs?
Houseplants are an easy way to bring greenery into your home, from a statement plant in the living room to a few smaller pots on shelf. But if your cat likes to nibble leaves or your dog investigates anything within reach, it’s worth checking which varieties you have. If you’re looking to add more greenery to your space, explore our collection of houseplants and take time to check that each variety is suitable for your pets.
Here are some common poisonous houseplants that may be harmful to pets.
Monstera and swiss cheese plants
Monstera deliciosa, often called the swiss cheese plant, is popular for its large, split leaves and tropical appearance.
Unfortunately, monstera is toxic to cats and dogs if chewed. It contained insoluble calcium oxalate crystals, which can cause immediate irritation to the mouth, tongue and throat, as well as drooling vomiting or difficulty swallowing.
If you’re wondering whether monsters are toxic to cats, the answer is yes. Keep it away from pets that like to investigate houseplants, and seek veterinary advice if your pet chews it.
Snake plants
The common rubber plant, Ficus elastica, has glossy leaves that make it a striking addition to an indoor display.
However, rubber plants can be harmful to cats and dogs. Their sap may irritate the mouth and skin, and eating the leaves can cause digestive upset.
It’s also worth checking the botanical name when researching rubber plants, as different plants share similar common names and may have different safety profiles.
ZZ plants
ZZ plants are popular for their glossy foliage and tolerance of lower light conditions. They’re often chosen by people looking for a relatively low maintenance houseplant.
Despite their easy care reputation, ZZ plants contain calcium oxalate crystals that can irritate the mouth and digestive tract if chewed. They’re not considered pet friendly, so keep them away from cats and dogs.
Aloe vera
Aloe cera is often kept on sunny windowsills and is recognised for the gel found inside its leaves. However, the plant itself can be toxic to cats and dogs if eaten.
The latex layer beneath the outer skin contains compounds that can cause vomiting, diarrhoea and lethargy. Don't assume a plant is safe for pets simply because parts of it are used in products intended for people.
Jade plants
Jade plants are attractive succulents with thick, fleshy leaves, but they can be toxic to cats and dogs. Eating them may cause vomiting, lethargy and a lack of coordination.
If you love the look of succulents, check the safety of each variety individually instead of assuming all varieties are safe.
Banana plants
Banana plants bring tropical feel indoors, thanks to their broad, lush leaves. The commonly grown ornamental banana plant is generally considered non-toxic to cats and dogs, but that doesn’t mean chewing it is a good idea. Eating plant material can still cause stomach upset, and the exact species should always be checked.
Are calatheas and prayer plants poisonous to cats and dogs?
If you’re looking for leafy greenery for a home with cats, calatheas and prayer plants are worth considering. Many commonly grown varieties, including calathea orbifolia and maranta leuconeura, are considered non-toxic to cats and dogs.
You can also read our houseplant care guide for advice on choosing and looking after indoor plants.
Are spider plants toxic to cats and dogs?
Spider plants are one of the most popular choices for homes with pets, and for good reason. They’re easy to grow, produce arching green and white leaves, and develop small plantlets that look lovely in a hanging pot.
The good news is that spider plants are generally considered non-toxic to both cats and dogs.
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Which flowers are toxic to cats?
flowers deserve particular attention, especially if you enjoy keeping fresh bouquets in the house or growing seasonal blooms in the garden.
Lilies: are lilies poisonous to cats?
True lilies and daylilies are among the most dangerous plants for cats. All parts of these plants can be toxic, including the flowers, leaves, stems and pollen. Even drinking water from a vase containing lilies can be dangerous.
Exposure can lead to severe kidney damage and can be fatal without prompt treatment. If you have a cat, the safest option is not to bring true lilies or daylilies into your home.
Other flowers to be aware of
Several other familiar flowers can be harmful to cats if eaten, including:
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Tulips: particularly dangerous when the bulbs are chewed
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Daffodils: can cause vomiting and other symptoms, especially if bulbs are eaten.
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Azaleas: can cause serious poisoning
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Hyacinths: their bulbs contain irritating and toxic compounds
If you’re buying flowers for your home, check the varieties in a bouquet rather than assuming they’re safe because they’re soil as cut flowers.
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What plants can I keep if I have a cat? Non-toxic houseplants
You don’t have to miss out on houseplants if you have a cat or dog. There are plenty of varieties that can add colour, texture, and greenery without the same toxicity concerns.
Here are some non-toxic houseplants to consider for a pet friendly home.
Spider plants
A good option for beginners, spider plants have great foliage and are easy to propagate. They work well in hanging planters or on shelves, although you should still consider whether your pet can reach them.
Calatheas and prayer plants
With patterned leaves and interesting colour combinations, calatheas and prayer plants are a lovely way to add interest without relying on flowering plants. Many commonly sold varieties are considered non-toxic to cats and dogs.
Orchids
If you prefer flowering houseplants, many commonly sold orchids, including popular moth orchids, are considered non-toxic to cats and dogs. They’re a useful option for adding a little colour indoors without choosing flowers that pose the same risks as lilies.
Christmas cactus
A christmas cactus can bring seasonal colour to your home, with flowers in shades such as pink, red and white. It is generally considered non-toxic to cats and dogs, making it an option worth considering during the festive season.
String of hearts
With delicate, heart shaped leaves on trailing stems, a string of hearts makes an attractive addition to a shelf or hanging planter. It’s generally considered non-toxic to cats and dogs.
Once you’ve checked which varieties are suitable for your household, browse our houseplants collections for inspiration.
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Which flowers are safe for cats?
If you’re choosing flowers for the garden or a bouquet, there are several options that are generally considered safer for cats.
These include:
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Roses: a classic choice for garden borders and cut flowers. Remove thorns where appropriate and keep arrangements out of reach
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Sunflowers: Cheerful summer flowers that can add height and colour to a garden.
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Snapdragons: useful for adding vertical interest to seasonal borders.
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Freesias: fragrant flowers that are generally considered non-toxic to cats
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Gerbera daisies: Bright, colourful flowers that can work in pots and borders.
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Zinnias: colourful summer flowers that are generally considered cat friendly
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Orchids: a popular indoor flowering plant, with many commonly sold varieties considered non-toxic to cats and dogs.
If you’re wondering whether sunflowers are toxic to cats, they’re generally considered non-toxic. However, eating large quantities of plant material can still cause an upset stomach.
It is also important to check other ingredients in a bouquet, including greenery and filler flowers. A bunch containing roses isn’t necessarily safe if it also includes lilies or another toxic plant.
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Dog friendly plants for your garden
If you’re looking for dog-friendly plants, start by checking the botanical names of the varieties you’re considering. There are plenty of options for adding colour and interest to an outdoor space without choosing plants known to be toxic to dogs.
Depending on your garden conditions some plants worth considering include:
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Sunflowers: a bright summer choice for borders and larger pots
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Roses: classic flowering shrubs for a range of garden styles
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Snapdragons: useful for adding height and seasonal colour
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Zinnias: a colourful option for summer displays
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Petunias: popular bedding plants for containers and hanging baskets
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Buddleia: a flowering shrubs that can attract butterflies and other pollinators
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Nasturtiums: colourful flowers that are generally considered non toxic to cats and dogs.
Are fuchsia plants toxic to dogs?
Fuchsias are popular for their colourful, dangling flowers, particularly in hanging baskets and patio containers. Commonly grown fuchsias are generally considered non-toxic to dogs and cats.
Are lavender plants toxic to dogs and cats?
Lavender is a familiar garden favourite, appreciated for its fragrance and flowers. However, lavender contains compounds that can be harmful if eaten in sufficient quantities, particularly to dogs.
A small amount may not cause serious problems, but eating larger amounts can cause symptoms such as vomiting, reduced appetite or lethargy. Lavender essential oil is more concentrated and should not be treated equivalent to the garden plant.
Planning a pet conscious garden? Explore our range of plants for your garden and check the suitability of each variety before planting.
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How to make your home and garden safer for pets
You don’t necessarily need to remove every plant from your home or garden to make it safer for pets, but a few simple habits can help reduce the risk of accidental poisoning.
Check plants before buying them
Look up the botanical name and confirm whether the variety is safe for your particular pet. Plant labels and common names don’t always give the full picture.
Choose pet friendly houseplants.
If your cat likes to chew leaves, consider varieties such as spider plants, parlour palms and suitable prayer plants.
Don't rely on height alone
Cats can climb, and leaves can fall from high shelves. If a plant is highly toxic, keeping it out of reach may not be enough; avoiding it altogether is safer.
Be careful with bulbs and fallen plant material
Dogs may dig up bulbs, while cats can come into contact with pollen and then groom it from their fur, clear up prunings, fallen leaves and plant debris.
Check bouquets before bringing them indoors
This is particularly important for lilies, which should never be brought into a home with cats
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What should you do if your pet eats a poisonous plant?
If you think your cat or dog has eaten a poisonous plant, contact your vet immediately for advice. Don’t wait for symptoms to appear, as some toxins can cause serious damage bedford the signs are obvious.
If possible, take a picture of the plant or keep its label so your vet can identify it. Tell them which part your pet may have eaten, roughly how much and when it happened.
Frequently asked questions about poisonous plants
What plants are poisonous to cats in the UK?
Common plants that can be poisonous to cats include true lilies, daylilies, daffodils, tulips, foxgloves, aloe vera, monstera, snake plants and jade plants. The level of risk varies, and some plants can cause much more serious illness than others.
What plants are poisonous to dogs?
Plants that can be harmful to dogs include yew, autumn crocus, oleander, daffodils, tulips, ivy, foxgloves, tomato foliage and some common houseplants such as aloe vera and snake plants. If your dog eats an unfamiliar plant contact your vet if you suspect it could be toxic.
Are all house plants poisonous to cats?
No. many houseplants are considered non-toxic to cats, including spider plants, parlour palms, many calatheas, prayer plants, peperomia and certain orchids. However, always check the exact variety before bringing it home.
Do cats know to avoid toxic plants?
No, cats don’t reliably know which plants are poisonous, so it’s not safe to assume they’ll instinctively avoid them.
Some cats nibble leaves out of curiosity, while others may chew plants when playing or exploring. They can also brush against plants and accidentally ingest it when grooming themselves.
The safest option is to keep toxic plants out of your home and garden where possible, particularly highly dangerous plants like lilies.
What is the most poisonous plant to cats?
Lilies, including true lilies and daylilies, are among the most dangerous plants for cats. Even small exposures can cause severe kidney damage, and pollen or water from a lily vase can pose a risk. Keep lilies out of homes with cats and contact a vet immediately if exposure is suspected.
Are snake plants toxic to cats?
Yes. Snake plants can cause vomiting, diarrhoea and other digestive symptoms if eaten by cats or dogs. If your pet chews one, contact your vet for advice, particularly if symptoms develop.
Is aloe vera toxic to cats?
Yes. aloe vera contains compounds that can cause vomiting, diarrhoea and lethargy in cats and dogs if eaten. Keep the plant away from pets and seek veterinary advice if you suspect they’ve ingested it.
Are tomato plants toxic to cats and dogs?
Yes. The leaves, stems and unripe green fruit of tomato plants can be toxic to cats and dogs. Keep pets away from the foliage and prevent them from eating the plant.
A home filled with greenery or a garden full of seasonal colour can still be a part of life with cats and dogs. The key is knowing which plants are suitable for your household and taking extra care with those that can cause harm.
If you’re choosing new houseplants or planning your next garden display, take a moment to check the varieties you’re considering. With so many different shapes, textures and colours to choose from, there are plenty of ways to enjoy plants while keeping your pets in mind.