Home House Plants 35 House Plants That Are Dangerous For Dogs

35 House Plants That Are Dangerous For Dogs

by ThatWoW Editorial Team
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Nothing can stop your fur babies from exploring the space that they live in, nibble at some things here and there, pee all over the place, etc. You just can’t contain them. Hence it is imperative to know that some plants might poison your fur babies, maybe even fatally.

And dogs tend to nibble at plants and its leaves when it’s hungry or bored (especially puppies). Therefore it is very important to make sure your house doesn’t have any plants that can potentially poison your dog. 

Now, don’t get us wrong, we aren’t here to discourage you from gardening; or having house plants. But enumerated below are a few plants that are poisonous for dogs. These plants range from a mild to a highly poisonous magnitude. 

35 House Plants That Are Dangerous For Dogs

1. Aloe Vera

While Aloe Vera is great for your skin, it’s not that great for your furry little friend. The pulp and leaves of the plant can be poisonous to your dogs, but only when they ingest it. You can still have the plant in your house if you want, but just make sure it’s at a place where your dog can’t eat its leaves.

The name of the toxin is Saponins and it can cause the dog depression, vomiting, change in the color of its urine, diarrhea, lack of appetite, etc. This plant is mild to moderately poisonous to dogs. 

2. Strelitzia (Bird of Paradise)

Strelitzia also is also known as the bird of paradise is a plant that has its origins in South Africa. The plant is ornamental and beautiful and is quite often used as an indoor plant for cut purposes.

But it is highly poisonous for dogs and can even be fatal. Your dog is very vulnerable to this plant and hence you need to make sure you don’t have any bird of paradise lying around in your house.

The whole plant is poisonous as it contains Hydrogen Cyanide (Prussic Acid). It can cause your dog to have difficulty in breathing, nausea, vomiting, drowsiness, decreased appetite, and in some cases even death. 

3. Dieffenbachia 

This is quite literally the easiest plant you can grow in your house. It is also called dumb cane. While it might be very popular in the indoor plant section, I’m afraid it doesn’t sit well with dogs. Your dog is vulnerable to the whole plant as it contains Insoluble calcium oxalates, proteolytic enzymes.

One bite of this and they’re easily poisoned. The symptoms are moderate and your dog will experience irritation in the mouth, tongue, and lips, excessive drooling, difficulty in swallowing, mucous membrane irritation, and intense burning sensation.

So if you’re looking to get a dog, you need to either get this plant out of your house or in a position where it’s impossible for your dog to reach. 

4. Jade Plant

This plant is famous for how easy it is to grow. Anyone can grow this plant but unfortunately this yet again popular houseplant is poisonous for dogs. Crassula Ovata is a plant that is native to Africa and can be mildly toxic to dogs. The specific toxin that triggers dogs is still unknown, which makes the whole plant poisonous.

It can cause your dog to have continuous nausea and retching. While these symptoms may not be that fatal and serious, it still better to not expose your dogs to it.

5. Sago Palm

These plants are beautiful and tropical and look stunning in your house and backyard, but your dogs don’t share the same opinion. While this exquisite plant might have your drooling, this plant is dangerous to a dog who tends to bite or chew anything and everything.

The plant contains a toxin called cycasin. It is infamous for causing liver damage, to not only dogs but cattle as well. The whole plant is malicious and the severity is very high.

Its common symptoms are vomiting, bruising, clotting disorder, jaundice, increased thirst, hemorrhagic gastroenteritis, liver damage, liver failure, and even death. So this plant is a definite no in a dog-loving and rearing household. 

6. Alocasia 

It is a relatively common houseplant from the family of Araceae, its native to the Eastern Himalayas, subtropical and tropical regions of Asia, and the tropical regions of Eastern Australia and Western Pacific. These plants also tend to be endemic and there are 79 different species.

These plants have a toxin called Insoluble calcium oxalate which makes it moderately poisonous for dogs. The whole plant is malicious and your dog will experience irritation in the mouth, tongue, and lips, excessive drooling, difficulty in swallowing, mucous membrane irritation, and intense burning sensation.

7. Arrowhead Plant 

The most common species of this plant is Syngonium podophyllum. It is native to the tropical areas of northern parts of South America and Central America. It is considered to be an ornamental plant and it looks beautiful and luscious in homes.

But this plant contains calcium oxalate which is harmful to dogs if it’s ingested or even made contact with. It is moderately severe but all parts of the plant are malicious and intoxicated.

Their symptoms include Depression, chills, vomiting, diarrhea, change in the color of urine, and lack of appetite. 

8. Calla Lily

While these plants are drop-dead gorgeous it is one of those plants that can be poisonous and harmful for your dogs. You can see the symptoms as soon as the dog ingests it.

Hence if you want to enjoy the beauty of these plants, you’re going to have to put it in a place where it’s not easily accessible to your dog. It includes Insoluble calcium oxalates and unidentified, toxic alkaloids. This plant is mild to moderately severe and the whole plant is malicious and harmful to your pet.

Their symptoms include Pawing at the mouth, drooling, oral pain, lack of appetite, and diarrhea. 

9. Kafir Lily

We have yet another lily that is fatal and toxic to dogs. A lot of people grow these as a houseplant. While it is an exquisite plant that has vibrant orange flowers, its ingestion can prove to be fatal for your dogs. It has toxins like Licorine and other alkaloids and it is highly severe.

The whole plant is poisonous for your animal but the base of the plant and the stems are even more malicious. These plants can cause low blood pressure, tremors, large intakes of the plant might cause convulsions, vomiting, and diarrhea, and maybe even cardiac arrhythmia. 

10. Ivy 

While poisonous Ivy is deadly, even normal ivy is exceedingly harmful to dogs. There are many types of ivy, like English Ivy or Devil’s Ivy. Also known as Hedera Helix, it is plausibly fatal to your dog when it is ingested.

The plant has some steroid known as sapogenin combined with polyacetylene compounds. The whole plant is toxic but it is most concentrated in the leaves and its symptoms include developing rashes, breathing problems, vomiting, diarrhea, excessive drooling, foaming at mouth, stomach and mouth irritation, swelling of the mouth, tongue, and lips, etc.

But large amounts of consumption can also lead to coma or paralysis. 

11. Elephant ear

Also known as Caladium, Ape, Via Sori, Malanga, Pai, Cape, or Taro, the chemicals found in this plant are similar to dumb cane or dieffenbachia hence the reaction they experience is very similar. It has a toxin called Insoluble calcium oxalates, proteolytic enzymes.

The symptoms are moderate and your dog will experience irritation in the mouth, tongue, and lips, excessive drooling, difficulty in swallowing, mucous membrane irritation, and intense burning sensation.

While this plant is beautiful and unique, it would be better if you grow them in hanging pots where your dog can’t access it. 

12. Asparagus Fern 

This beautiful plant is also called Emerald Feather, Emerald Fern, Plumosa Fern Lace Fern, and Sprengeri Fern. While it looks gorgeous, especially when lined against walls it is lethal to dogs. It has a specific toxin called Sapogenin which doesn’t sit well with dogs.

While the whole plant is malicious, this toxin is deeply concentrated in the berries. If your dog ingests a berry he’s most likely to experience mild to moderate symptoms such as abdominal pain, diarrhea, vomiting, inflammation of the skin, rashes, indigestion, etc. 

13. Sowbread

This flowering plant native to the Mediterranean areas has a vibrant purple color that can liven up any room. It is also known as Cyclamen. Hence it is commonly used and loved as a houseplant. Alas, it isn’t that pet friendly and in some severe cases can be fatal to your furry babies.

This plant contains Terpenoid saponins which can cause a number of problems for dogs. They can experience moderate to severe symptoms which include abnormal heartbeat, irritation in the mouth and face, vomiting, diarrhea, pawing at the face in distress, agitation and pacing, tremors, and in some cases even seizures and possibly death. 

14. Azalea 

Azalea is also commonly known as rhododendron is a gorgeous pink and peach flowering shrub. It adds color to the space and is popularly used as a houseplant.

But Azalea isn’t that compatible with dogs and can poison them very easily. They contain a toxin called grayanotoxin. It can cause disruption in nerve and muscle tension.

The whole plant is malicious and the symptoms are moderate to severe. The symptoms include oral irritation, excessive drooling, pawing at the face, muscle weakness, sudden collapses, and if increased ingestion then even death.

15. Poinsettia 

Poinsettia is a holiday favorite as it adds festive colors to the house. You often find it as a dining table arrangement or houseplant. But these can cause mild irritation to your dogs.

They have a toxic component that is an irritant sap and causes your dog to vomit, or have diarrhea, and oral irritation. While the symptoms are relatively mild, make sure you keep this plant out of reach from your dogs or they’re not going to have a jolly Christmas that year. 

16. Mistletoe

While we are on the topic of festive plants, mistletoe can be quite lethal to your dogs as well. So make sure when you are hanging up you mistletoe, it doesn’t easily fall, or your dog can’t access it. Mistletoe has two toxins called toxalbumin and pharatoxin viscumin.

They can be really disabling and poisonous to your dog with symptoms ranging from moderate to severe. These toxins can cause gastrointestinal symptoms such as vomiting, diarrhea, abdominal pains, and in some very severe cases a cardiac collapse. 

17. Hydrangeas 

I’m sure you’ve heard about this plant. The flowers of this plant are quite popular and a major favorite among bloom lovers. They look stunning in any home as they are ornate and delicate. But I’m sorry to tell you that you will have to get rid of this plant or put it in a place where your dog can’t access it as these flowers are poisonous to dogs.

It has a toxin called cyanogenic glycoside. There are rarely any symptoms of true cyanide seen but ingestion of this will cause your dog a lot of abdominal irritation. It has mild to moderate symptoms of vomiting, indigestion, and diarrhea. 

18. Oleander 

Although these plants are not that popular as houseplants, they are very popular backyard plants and are often found in a lot of backyard in the United States, so it’s best if I warn you about these as well. As you’ve probably guessed, they are very poisonous to your dogs.

They have a toxin called cardiac glycoside that can cost your dog its life. All parts of this plant are malicious and your dog can immediately be poisoned by eating a little leaf or bud from the plant.

It has severe symptoms and can cause heart arrhythmias if ingested. 

19. Cannabis 

Cannabis while beautiful is one of the most common things that poison your dog. A lot of vets see the common symptoms of cannabis poisoning and they are pretty severe.

It has a toxin called Delta nine tetrahydrocannabinol which can cause a lot of neurological imbalances in your dog. It can cause incoordination, constant tremors, excessive drooling, respiratory problems, seizures, depression, and even coma. The whole plant is pretty fatal and it is best to keep your dogs away from it. 

20. Philodendrons

Philodendrons also known as Swiss cheese plants, fiddle leaf philodendron, and heartleaf. While they are very common as houseplants, they have a toxin that is mild to moderately poisonous for dogs.

The whole plant is poisonous and can cause oral irritation, difficulty swallowing, swelling of the mouth, tongue, and lips, excessive vomiting, diarrhea, pain in the mouth region, etc. 

21. Rubber Tree Plants 

Rubber tree plants such as Chinese, Japanese, Indian, and Jade rubber plants. If you have these plants you need to get rid of it or situate it in a place where your dog can’t access it.

These plants are mild to moderately poisonous to your dog. The whole plant is malicious and its symptoms include decreased appetite, depression, skin irritation and rashes, diarrhea, excessive drooling, and vomiting.

In some severe cases, it can even slow the heart rate of your dog. 

22. Chinese Evergreen

Chinese evergreens are a household name as they look very rich, sophisticated, and timeless. But unfortunately, they belong to the Araceae family which can make them poisonous to dogs. I have covered a few more plants that are from the Araceae family above and this is no different.

It has insoluble calcium oxalate crystals which are known to be fatal to dogs. The whole plant is malicious and your dog will experience irritation in the mouth, tongue, and lips, excessive drooling, difficulty in swallowing, mucous membrane irritation, and intense burning sensation.

23. Lantana

Lantana which is considered a weed in Australia is commonly used as a houseplant. Mainly because it is very colorful and can liven up any space. But Lantana is known to be poisonous to dogs. The whole plant is malicious to dogs and can cause moderate to severe symptoms.

The symptoms include abdominal pains, shock, diarrhea, loss of appetite, abdominal swelling, depression, vomiting, and in some cases even liver failure. 

24. Amaryllis

Although the Amaryllis belongs to the lily family, it is comparatively less poisonous when compared to tiger lily, Asiatic lily, daylily, Easter lily, lily of the valley, and flame lily.  It contains toxins such as Lycorine and other glycosides.

Their severity ranges between mild to moderate and while the whole plant is deadly, there is most concentrated in the bulbs. It can cause medical problems such as vomiting, drop in blood pressure, drooling, loss of appetite, depression, etc. 

25. Ti Plant 

Ti Plant is also known as Cordyline terminalis. While this plant is a public favorite because of how low maintenance it is and its lavish looks, it can be poisonous to dogs. It has a toxin called Saponins and while the symptoms are relatively mild and controllable, it’s still best if put this in a place your dog can’t access it.

The whole plant is malicious and its symptoms include depression, lack of appetite, vomiting (sometimes with blood), and excessive drooling. 

26. Begonia

Begonia is easily one of the most attractive plants ever. It looks unique and beautiful. Filled with colors, it’s no wonder it is such a common houseplant. But it can be mildly irritating to the dogs as it contains a toxin called Insoluble oxalates. We’ve talked about this above as well.

While the symptoms are mild, it is best if you distance your dog from this plant. The whole plant is malicious and your dog will experience irritation in the mouth, tongue, and lips, excessive drooling, difficulty in swallowing, mucous membrane irritation, and intense burning sensation.

27. Peyote

Also known as Lophophora williamsii is a part of the cactus family. Popularly known as peyote, this plant is native to the regions of New Mexico and Texas. While the plant has many medicinal uses and looks beautiful, it is poisonous for dogs.

They have a toxin called Mescaline and other alkaloids. And while the severity is moderate, the dog experiences symptoms such as vomiting, diarrhea, psychotropic, intoxication. 

28. Brunfelsia

More popularly known as yesterday, tomorrow, today, Lady-of-the-Night and Kiss-me-quick, looks vintage and timeless. They are very romantic flowers, but dogs don’t seem to love it.

It is highly poisonous for dogs as it contains hopeanina which is a depressant for dogs and Brunfels Amidine. The dog experiences severe symptoms such as muscle cramps, irritation in the mouth and stomach (excessive drooling, diarrhea, and vomiting), paralysis of the nervous system, and even coma. 

29. Cactus

Cactus is the most low maintenance plant ever. And hence they are often grown as ornamental house plants. But they are harmful to dogs, and the reason is quite self-explanatory. While many species have toxic substances, they also have spikes that can be injurious to your furry babies.

The spikes can cause injuries and rashes to the skin. So as long as your dog is not coming in direct contact with your cactus, you can still have them in your house (as hanging plants). 

30. Kalanchoe

Kalanchoe is a part of the Crassulaceae family. While it is a beautiful plant sprouting lovely sunshine yellow flowers, it can be poisonous to your dogs and affect their heart the most.

They contain a toxin known as Bufadienolides. The whole plant is malicious and the symptoms are moderate to severe. Some of the most common symptoms are diarrhea, chest pains, and an abnormal heartbeat. 

31. Dracaena

It is a genus that contains about 40 different species of shrubs and plants. They are most commonly found in the Canary Islands, Asia, and Africa. They are popularly used as houseplants and look quite beautiful. However, they are poisonous to dogs.

They have a toxin called Saponins that has mild to moderate symptoms on dogs. All parts of the plant are malicious and it can cause a loss of appetite, vomiting (sometimes with blood), depression, and excessive drooling. 

32. Eucalyptus

While eucalyptus oil has a lot of uses, dogs aren’t exactly a fan of it. It can irritate them and make them lethargic. Even if they so much as smell the plant, it can instantly trigger a bad mood for the dog.

The whole plant is malicious to them. It has moderate symptoms as it causes depression, irritability, weakness, vomiting, diarrhea, and excess salivation. If you are growing Eucalyptus in your house then I suggest you contain them in containers and keep them at a distance 

33. Flame Lily

True to its name it is a lily that looks like a flame and is grown in a plethora of houses. Not only does it look very pretty but it also has a lot of medicinal uses, specifically in Ayurveda. This is quite possibly one of the deadliest plants as well. When it is ingested, it can kill even a human being.

It used to commit murders, induce abortions. And it is absolutely deadly to dogs. They have Colchicine related alkaloids that have very severe symptoms once ingested. They can cause bloody vomits, bone marrow suppression, kidney failure, bloody diarrhea, paralysis, and even death.

34. Ficus Benjamina 

Also known as the weeping willow. Ficus is native to the Solomon Islands, and South Asia. It is even the official tree of Bangkok, Thailand. This plant has toxins like Proteolytic enzyme (ficin), psoralen (ficusin). It has mild to moderate symptoms. All parts of the plant are malicious and deadly to dogs.

As soon it contacts their skin, it causes irritation and rashes to the skin. It also causes oral and abdominal irritation similar to the rubber tree plant-covered above. 

35. Flamingo Flower

Flamingo flowers, while having a very unique shape and a gorgeous color, isn’t compatible with dogs. We’ve covered similar plants above. This plant also has the common Insoluble calcium oxalates which moderately irritate the dogs. The whole plant is malicious and your dog will experience irritation in the mouth, tongue, and lips, excessive drooling, difficulty in swallowing, mucous membrane irritation, and intense burning sensation.

How To Prevent Your Dog From Eating Plants

While this might be completely subjective, there might be a few plants that you just can’t get rid of. Either they’re too beautiful, or you have an emotional connection to them, or they’re just auspicious and bring good vibes in your house.

Well, there might be ways in which you can train your dog to not eat your plants. Dog training does wonder. You can easily teach your dog to not go near that plant, and not ingest it. Obviously, dog training will be more successful if practiced ever since they were puppies.

Any easier method is to just spray the perimeter of your plant with some lemon juice. Dogs find the smell of lemon juice pungent and don’t tend to go near areas that smell like that. But make sure your dog doesn’t have a medical allergy/aversion to lemon juice before using this method.

Alternative Plants That Are Safe For Your Pets

There are a lot of plants out there that are safe for your dogs. Gardens can actually be very stimulating for dogs and they love smelling flowers. There are a lot of plants that are non-toxic and completely pet friendly. You can have some perennials like nepeta, hardy geranium, and astilbe. Plants like bugbane, bugle leaves, clover ground covers, etc. 

Well there you have it, 35 plants that are toxic to your dog and the symptoms you might see to identify the intoxication. While gardening might be your hobby and passion, you need to make sure that none of the plants you’re growing are harmful to your furry friend.

There are a lot of other plants that you can grow that are just as beautiful, or just try implementing the tips on how to prevent your dog from eating your plants.

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