Toxic Plants To Dogs – Plants That Are Poisonous To Dogs

Toxic Plants To Dogs – Plants That Are Poisonous To Dogs

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By: Nikki Tilley, Author of The Bulb-o-licious Garden

There’s no avoiding it. Dogs can be extremely vigilant in their quest for something to nibble on — a bone here, a shoe there, and even a plant or two. The problem is that there are many toxic plants to dogs; therefore, knowing what plants are poisonous to dogs can go a long way in preventing something tragic from happening and keeping your pet safe around the house.

What Plants are Poisonous to Dogs?

There are numerous plants that are poisonous to dogs. Because of this, it would be nearly impossible to go through and name each one (along with symptoms) in one brief article. Therefore, I’ve decided to split some of the mast common toxic plants to dogs into three categories: those that are mildly poisonous, moderately poisonous, and severely toxic.

Plants Poisonous to Dogs with Mild Effects

While many plants can result in mild toxicity, these are some of the most common:

  • Ivy, poinsettia, tansy, nettle, wisteria (seeds/pods), and iris can all result in mild to severe digestive upset.
  • Buttercups (Ranunculus) contain juices that can severely irritate or even damage a dog’s digestive system.
  • Jack-in-the-pulpit can lead to intense burning and irritation of the mouth and tongue.

Plants Toxic to Dogs with Moderate Effects

  • Numerous types of bulbs can moderately affect dogs. Those like hyacinth and daffodil bulbs can cause vomiting, diarrhea, and even death in large amounts.
  • Crocus, lily-of-the-valley, and star of Bethlehem can result in vomiting, nervous excitement, irregular heartbeat, digestive upset, and confusion.
  • Plants in the Aroid family (such as dumbcane) can cause intense mouth and throat irritation.
  • Azalea and rhododendrons cause nausea, vomiting, depression, breathing difficulty, coma, and even death in severe cases.
  • Larkspur (Delphinium) young plants and seeds lead to digestive upset, nervous excitement, and depression.
  • Foxglove (Digitalis) in large amounts can cause irregular heartbeat, digestive upset, and mental confusion.
  • Members of the Nightshade family, especially berries, can lead to intense digestive upset and nervous problems which can be fatal.
  • Both leaves and acorns from oak trees can affect the kidneys while the bark and foliage of black locust trees cause nausea, weakness, and depression.

Severely Toxic Plants to Dogs

  • Seeds and berries can be a major concern for dog owners. Rosary pea and castor bean seeds can quickly spell disaster for your pet, often leading to death. Both mistletoe and jasmine berries can cause digestive and nervous system failure, resulting in death. Yew berries (as well as foliage) can cause sudden death.
  • Plants like poison and water hemlock can lead to violent, painful convulsions and death.
  • Large amounts of raw or cooked rhubarb can also cause convulsions followed by coma and death.
  • Jimsonweed leads to extreme thirst, delirium, incoherence, and coma.
  • Both the twigs and foliage of cherry trees can be fatal to dogs if eaten as well.
  • While all parts of the plant can be toxic, the leaves of sago palms can cause severe kidney and liver damage, even death, to dogs if ingested. Seeds are also severely toxic.

While symptoms may vary between dogs in addition to the amount and part of the plant ingested, you should take your dog to the vet immediately once any unusual behavior takes place, especially when you suspect they may have eaten a toxic plant (which you’ll want to take with you to the vet as well).

This was just a high-level look at plants poisonous to dogs. For a more complete listing of plants toxic to dogs, please visit:
Cornell University: Poisonous Plants Affecting Dogs
UC Davis School of Veterinary Medicine: Pets and Toxic Plants

This article was last updated on

Read more about Environmental Problems

34 Poisonous Houseplants for Dogs | Plants Toxic to Dogs

The purpose of this article is not to discourage you from growing houseplants but to make you aware of some of the popular and common houseplants toxic to dogs. Labeled as mildly, moderately, highly, and very highly poisonous.

We believe a dog is a curious animal, especially when it’s young (puppy). Extremely argus-eyed in its quest and if your dog has a tendency to look for something to nibble on then this list of poisonous plants for dogs will help you.

Note: Many of our readers suggested through emails and comments that we should not label plants that contain calcium oxalate as toxic, and we are in agreement. You can exclude the plants that contain only calcium oxalate crystals or the plants that are termed as mildly or moderately poisonous in this list!

There are thousands of plant and flower species thankfully, only a few are highly toxic plants for dogs. If you think your dog ingested a toxic plant, seek veterinary care immediately.

Knowing which plants to avoid will help you protect your canine from accidental ingestion. Here are the top outdoor toxic plants for dogs to avoid, and what dangers they can cause if ingested, according to the ASPCA.

  • Aloe vera – vomiting, diarrhea
  • Autumn Crocus – severe vomiting, gastrointestinal bleeding, liver and kidney damage
  • Azalea – even just a few leaves can cause vomiting, diarrhea, excessive drooling, coma and death
  • Cyclamen – the roots of this plant are toxic and cause severe vomiting and even death
  • Kalanchoe – this flowering succulent can cause vomiting, diarrhea and heart arrhythmias
  • Oleander – the leaves and flowers can cause severe vomiting, slow heart rate and even death
  • Daffodils – eating the bulb, plant or flower can cause severe vomiting, diarrhea, abdominal pain, arrhythmias or respiratory issues
  • Lily of the Valley – vomiting, diarrhea, slow heart rate and possible seizures
  • Sago Palm – leaves can cause vomiting, bloody stools, damage to the stomach lining, liver failure and even death
  • Tulips and hyacinths – the bulbs are the most toxic, but the plant parts also also poisonous, and both can cause excessive drooling, vomiting, diarrhea, slow heart rate and respiratory function

Wild Toxic Plants for Dogs

52. Poppy

If your house is situated near a poppy field and you also own a dog, then be sure to keep your pooch away from poppy fields as the entire plant is considered toxic for dogs and can cause opioid poisoning.

Toxins: The entire plant contains a milky white juice (from which opium-produces), which includes slightly poisonous alkaloids and small amounts of papaverine. Flakes also contain anthocyanin, alkaloids morphine, and codeine.
Severity: Very high
Malicious parts: The whole plant, juice, seeds
Symptoms: Drowsiness, nausea, dizziness, allergic reactions, loss of appetite, hallucinations.

53. Hemlock (Conium maculatum L.)

The toxins in hemlock or poison hemlock are dangerous to many animals and humans. If your dog has ingested even a small amount of these herbs, then it is necessary to contact your veterinarian immediately.

Toxin: Pyridine alkaloids
Severity: Very high
Malicious parts: The whole plant, especially stem and rhizome
Symptoms: Increased temperature, tremors, convulsions, panting, frothing, coma, and death.

54. Water hemlock (Cicuta virosa L.)

Water hemlock is toxic in a similar way as poison hemlock the toxins in both plants are deadly for humans and animals. If your pets ingest any hemlock, contact your vet without wasting time.

Toxin: Cicutoxin
Severity: Very high
Malicious parts: The whole plant, especially stem and rhizome
Symptoms: Salivation, nausea, vomiting, dilated pupils, seizures, loss of consciousness, difficulty in breathing. Death may occur due to paralysis of the respiratory center.

55. Euonymus (Euonymus verrucosus Scop.)

Euonymus is grown as ornamental plants for their bright orange foliage and yellow-green flowers, turning into pink berry-like fruit that might attract your dog, which is not considered to be safe. Since this plant contains alkaloids that can be fatal for your pooch if ingested.

Toxin: Alkaloids
Severity: Very high
Malicious parts: The whole plant, mainly fruit
Symptoms: Vomiting, diarrhea, tremors, convulsions, cardiac disorders, paralysis, and death.

56. Mugwort (Artemisia vulgaris L.)

Though mugwort has been used for medicinal purposes and as a culinary herb, despite that, it is not good for your dogs as the plant contains a terpene, which can be harmful to your dog if ingested.

Toxin: Organic chemical compound-terpene
Severity: High
Malicious parts: The whole plant
Symptoms: Vomiting, diarrhea, irritation of the nervous system.

57. Black honeysuckle (Lonicera nigra L.)

Black honeysuckle can be a gorgeous addition to your garden, as it spreads rapidly in attractive fragrant flowers, but be careful if you have a playful dog. Since chewing or biting the berries of honeysuckle plants in large quantities can be harmful.

Toxins: Saponins and small amounts of cyanogenic glycosides
Severity: Very high
Malicious parts: The whole plant
Symptoms: Kidney damage, dizziness, cyanosis, tachycardia, respiratory paralysis, nausea, vomiting, agitation, abnormal heart rhythm, bloody diarrhea, convulsions, dilated pupils, coma.


There are hundreds of plants that can be poisonous to dogs. We listed above the 20 most toxic plants for dogs. If your pup ingested any of these plants and you notice any adverse symptoms. Contact your vet immediately.

About Author: Serve Dogs Team Provides information after the in-depth and comprehensive research, including the researches of Vets and Pet expert Around the Globe.

Serve Dogs Team Provides you the comprehensive summary of Google Top twenty pages, which will help you to get all your required information effortlessly.

12 Houseplants That Can Kill Your Dog — or at Least Make Them Really, Really Sick

Plants are shockingly dangerous, like WTF?

Houseplants have some incredible qualities. They help you focus . They improve your mood . They even increase your overall hotness on Instagram . But pick the wrong houseplant, and it can kill your dog .

To make sure that never happens, Jerry Klein , chief veterinary officer at the American Kennel Club , and Tina Wismer, senior director of the ASPCA Animal Poison Control Center , helped me put together a list of the most common (and most evil) plants that are poisonous to dogs.

What Plants Are Toxic to Dogs?

Lily of the Valley. Its bell-shaped flowers may look harmless, but the lily of the valley plant houses a dense population of cardiac glycosides , which can cause potentially lethal cardiac disturbances if consumed by both humans and domestic animals. The same can be said for many plants in the digitalis family, more commonly known as foxgloves.

Oleander. “Although arguably beautiful, every part of an oleander plant is poisonous,” Klein says. “Ingesting it can cause a range of symptoms, from dizziness to vomiting, and may even lead to death, especially in the case of pets and small children.” Fuck oleanders then.

Philodendron. “Philodendron is a very popular houseplant,” Wismer says. “It contains insoluble calcium oxalate crystals that, when ingested, can cause pain and irritation in the mouth and lips. Very rarely, we can see swelling in the mouth, causing difficulty breathing.”

Castor Bean. More commonly grown outdoors, but sometimes grown indoors, “Castor bean is highly toxic and can cause severe stomach upset, liver failure and tremors,” Wismer warns.

Peace Lily. “This low-maintenance plant is commonly given as a gift, but it’s poisonous to humans and pets,” Klein warns. “Ingestion can cause drooling, vomiting and swelling of the lips, tongue and upper airway.” Moreover, Klein says, “Most lilies are extremely toxic,” so you probably want to avoid them altogether.

Sago Palm. You think a sago palm will make your apartment more tropical , but it thinks, Ima kill your dog! “The leaves and seeds of sago palms are toxic,” says Klein. “While humans may only suffer some discomfort if they ingest it, the plant is extremely dangerous to dogs and can lead to liver damage.” Wismer adds, “All parts of this plant are poisonous, however, the seed or ‘nuts’ contain the largest amount of toxins.”

ZZ Plant. “ZZ plants are very common, sold at just about every garden center ,” Klein explains. “They’re also noxious to humans and pets. While not as dangerous as oleanders, we probably wouldn’t keep any around if we had curious pups.” Common symptoms of ingestion include burning and irritation of the mouth, and excessive drooling.

Snake Plant. Coveted for being low maintenance, snake plants are extremely popular, but equally dangerous. “Large doses can cause nausea and vomiting, and the poison found in the plant has a numbing effect that can cause the tongue and throat to swell,” Klein says. Nope, we can’t have that!

Mistletoe. Sure, you can kiss under the mistletoe, but don’t let your dog kiss (or eat) the plant itself. “Mistletoe is widely reported to be poisonous,” says Klein. “Vomiting and diarrhea may result when eaten, but usually the effects are short-lived.”

Holly. Another plant that can make your dog terribly sick while simultaneously spreading holiday cheer, holly “can result in mild to moderate gastrointestinal upset,” according to Klein.

Poinsettia. While not incredibly dangerous, “Dogs who eat poinsettia may show irritation of the mucous membranes, hypersalivation and vomiting,” Klein says. “These symptoms rarely require medical intervention however, if you’re concerned, contact your vet.”

Kalanchoe. Also known as flaming Katy, kalanchoe “contain molecules related to the cardiotoxic compounds of poisonous toads that can poison the hearts of animals,” Klein explains. “Dogs are particularly sensitive to the cardiotoxic effects of kalanchoe. They have experienced vomiting, diarrhea and depression after ingestion of this plant.” How dare kalanchoes make our dogs sad!

And More!

The sad truth is, there are a hell of a lot of poisonous plants out there. “There are also dangerous plants to look out for while doing outdoor gardening,” Klein says. “A number of common flowers and plants can be unsafe — or even fatal — for dogs, so it’s important to do research on the plants that you’ll be using in your garden.” He specifically suggests avoiding calla lilies , azalea and rhododendron . “Bulb plants such as tulips , daffodils and crocus can also be toxic if ingested,” Klein adds. “Additionally, be mindful of flowers and plants that have thorns, as these can be dangerous for your pup as well.”

“If you do have one of these plants, make sure to keep it in a place that your pet doesn’t have access to,” Wismer says. “Typically, this includes making a physical barrier, as many deterrents aren’t consistently effective, and with some plants, a single exposure could be life threatening.”

For more information, the ASPCA has an exhaustive database with hundreds of plants that are poisonous to dogs (and other animals) — as well as several lists of dog-safe plants — so if you’re planning on plant shopping anytime soon, your best bet is to make a tally of plants you like, then compare. “Do your research, and if you think your dog has ingested something potentially harmful, always consult with your veterinarian right away,” Klein says.

On second thought, you could just choose one or the other. Who needs plants when you have a dog , anyway?

Ian Lecklitner

Ian Lecklitner is a staff writer at MEL Magazine. He mostly writes about everyone's favorite things: Sex, drugs and food.

Here are all the poisonous plants known to cause serious side effects in dogs. The ASPCA also has a great list of all the toxic and non-toxic plants for dogs – complete with photos – that you should check out.

  • Adam-and-Eve (also called: Arum, Lord-and-Ladies, Wake Robin, Starch Root, Bobbins, Cuckoo Plant)
  • African Wonder Tree
  • Aloe
  • Amaryllis (also called: Belladonna lily, Saint Joseph lily, Cape Belladonna, Naked Lady, Barbados lily)
  • American Mistletoe
  • Ambrosia Mexicana (also called: Jerusalem Oak, Feather Geranium)
  • American Mandrake (also called: Mayapple, Indian Apple Root, Umbrella Leaf, Wild Lemon, Hog Apple, Duck’s Foot, and Raccoonberry)
  • American Yew (also called: Canada Yew, Canadian Yew)
  • Apple (including crabapples stem, leaves and seeds contain cyanide, but the fruit is okay for dogs)
  • Apricot (stems, leaves, and pit contain cyanide)
  • Arrow-Head Vine (also called: Nephthytis, Green Gold Naphthysis, African Evergreen, Trileaf Wonder)
  • Australian Ivy Palm (also called: Schefflera, Umbrella Tree, Octopus Tree, Starleaf)
  • Autumn Crocus (also called: Naked Ladies)
  • Azalea
  • Baby Doll Ti Plant (also called: Ti-Plant, Good-Luck Plant, Hawaiian TI Plant)
  • Barbados Pride (also called: Peacock Flower, Dwarf Poinciana)
  • Barbados Pride 2 (also called: Bird of Paradise, Poinciana, Brazilwood)
  • Begonia
  • Bergamot Orange
  • Bird of Paradise Flower (also called: Crane Flower, Bird’s Tongue Flower)
  • Bishop’s Weed (also called: False Queen Anne’s Lace, Greater Ammi)
  • Bitter Root (also called: Dogbane Hemp, Indian Hemp)
  • Bittersweet (also called: American Bittersweet, Waxwork, Shrubby Bittersweet, False Bittersweet, Climbing Bittersweet)
  • Black Calla (also called: Solomon’s Lily, Wild Calla, Wild Arum)
  • Black Laurel (also called: Dog Hobble, Dog Laurel, Fetter Bush, Sierra Laurel)
  • Black Walnut
  • Bog Laurel (also called: Pale Laurel)
  • Borage (also called: Starflower)
  • Boxwood
  • Branching Ivy (also called: English Ivy, Sweetheart Ivy, California Ivy)
  • Brunfelsia (also called: Lady-of-the-Night, Kiss-Me-Quick, Franciscan Rain Tree)
  • Buckwheat
  • Burning Bush (also called: Spindle Tree)
  • Buttercup (also called: Figwort)
  • Butterfly Iris
  • Calamondin Orange
  • Calla Lily (also called: Trumpet Lily, Arum Lily, Pig Lily, White Arum, Florist’s Calla, Garden Calla)
  • Caraway
  • Cardboard Palm (also called: Cardboard Cycad)
  • Castor Bean Plant
  • Carnation
  • Chamomile
  • Chandelier Plant (also called: Devils Backbone)
  • Cherry (stem, leaves, and pit)
  • Chinaberry Tree (also called: Bead tree, China Ball Tree, Paradise Tree, Persian Lilac, White Cedar, Japanese Bead Tree, Texas Umbrella Tree, Pride-of-India)
  • Chinese Evergreen
  • Chinese Jade (also called: Silver Jade Plant, Silver Dollar)
  • Chives
  • Chrysanthemum (also called: Mums)
  • Clematis (also called: Virgin’s Bower)
  • Clivia Lily
  • Coffee Tree
  • Coleus (also called: Bread-and-Butter Plant, Spanish Thyme, East Indian Thyme)
  • Corn Plant (also called: Dragon Tree)
  • Cow Parsnip (also called: Giant Hogweed)
  • Cowbane
  • Cyclamen
  • Daffodil (especially the bulbs)
  • Dahlia
  • Daisy
  • Desert Rose (also called: Desert Azalea, Mock Azalea)
  • Deadly Nightshade (also called: Climbing Nightshade, Poisonous Nightshade, Woody Nightshade, and Blue Nightshade)
  • Dieffenbachia (also called: Dumb Cane)
  • Dog Daisy
  • Eastern Star
  • Elephant Ears (also called: Taro, Malanga, and Caladium)
  • Elephant-Ear Begonia
  • Emerald Fern (also called: Emerald Feather, Asparagus Fern)
  • Epazote (also called: Mexican Tea)
  • Eucalyptus
  • Fetterbush (also called: Maleberry, Staggerberry)
  • Fleabane (also called: Horseweed, Showy Daisy)
  • Florida Beauty (also called: Gold Dust Dracaena, Spotted Dracaena)
  • Foxglove
  • Garlic
  • Gardenia (also called: Cape Jasmine)
  • Geranium
  • Giant Dracaena (also called: Palm Lily, Grass Palm)
  • Gladiola
  • Glory lily (also called: Gloriosa Lily, Climbing Lily, Superb Lily)
  • Good Luck Plant (also called: Golden Birds Nest, Snake Plant)
  • Grapefruit (skin and plant parts fruit isn’t toxic)
  • Heavenly Bamboo (also called: Sacred Bamboo)
  • Hellebore (also called: Christmas Rose, Easter Rose)
  • Holly (also called: American Holly, English Holly, European Holly, Oregon Holly, Inkberry, Winterberry)
  • Hops
  • Horse Chestnut (also called: Buckeye)
  • Hosta
  • Hyacinth
  • Hydrangea
  • Indian Rubber Plant (also called: Fig, Weeping Fig)
  • Iris (also called: Flag, Snake Lily, Water Flag)
  • Iron Cross Begonia
  • Jack-in-the-Pulpit
  • Jade Plant (also called: Baby Jade, Dwarf Rubber Plant, Chinese Rubber Plant, Japanese Rubber Plant)
  • Japanese Yew (also called: Buddhist pine or Southern yew)
  • Jerusalem Cherry (also called: Winter Cherry)
  • Jonquil
  • Lambkill (also called: Sheep Laurel)
  • Larkspur
  • Laurel (also called: Mountain Laurel, Bay Laurel)
  • Lavender
  • Leek
  • Lemon (skin and plant parts fruit is non-toxic)
  • Lemon Grass
  • Lemon Verbena
  • Lily of the Valley
  • Lily-of-the-Valley Bush (also called: Andromeda Japonica)
  • Lime (skin and plant parts fruit is edible)
  • Lobelia (also called: Cardinal Flower, Indian Pink)
  • Locust
  • Lovage
  • Macademia Nut
  • Madagascar Dragon Tree
  • Mapleleaf Begonia
  • Marijuana (also called: Indian Hemp, Hashish)
  • Marjoram
  • Mayweed
  • Metallic Leaf Begonia
  • Milkweed
  • Mint
  • Mole Bean Plant
  • Morning Glory
  • Narcissus (also called: Paper White)
  • Nightshade (also called: Black Nightshade)
  • Oleander
  • Onions
  • Orange (skin and plant parts fruit isn’t toxic)
  • Oregano
  • Painter’s Pallet (also called: Flamingo Lily, Flamingo Flower, Pigtail Plant, and Oilcloth Flower)
  • Parsley
  • Peace Begonia
  • Peach (stem, leaves and pit)
  • Peace Lily
  • Pencil Cactus (also called: Sticks of Fire)
  • Peony
  • Periwinkle (also called: Running Myrtle)
  • Philodendron
  • Plum (stem, leaves and pit)
  • Poinsettia
  • Poison Hemlock (also called: Deadly Hemlock, Winter Fern, California Fern, Nebraska Fern)
  • Pothos (also called: Golden Pothos, Taro Vine, Devil’s ivy)
  • Prayer Bean (also called: Rosary Bean, Buddhist Rosary Bean, Indian Bean, Indian Licorice)
  • Prickly Ash (also called: Angelica Tree, Prickly Elder, Hercules’ Club, Devil’s Walking Stick)
  • Primrose
  • Privet (also called: Wax-Leaf)
  • Purslane (also called: Moss Rose, Rock Moss)
  • Ragwort (also called: Golden Ragwort)
  • Ranger’s Button (also called: Swamp White Heads)
  • Red-Marginated Dracaena
  • Red Sage (also called: Shrub Verbena, Lantana, Yellow Sage)
  • Rex Begonia
  • Rhubarb
  • Sago palm
  • Shamrock Plant
  • Skunk Weed (also called: Skunk Cabbage, Swamp Cabbage, Polecat Weed)
  • Sorrel
  • Spring Parsley
  • John’s Wort (also called: Klamath Weed)
  • Striped Dracaena
  • Sweet Pea (also called: Everlasting Pea)
  • Sweet William (also called: Pinks)
  • Tahitian Bridal Veil
  • Tarragon
  • Tobacco (also called: Tree Tobacco, Mustard Tree, Nicotiania)
  • Tomato Plant
  • Tulips
  • Wandering Jew
  • Watercress
  • Wisteria
  • Yarrow (also called: Milfoil)
  • Yucca

To conclude, the list of poisonous plants for dogs is extremely extensive. So before you plant any new flowers or bushes in your yard, make sure to do your research.


The information on this page is for informational purposes only. It is not intended to be a substitute for qualified professional veterinary advice, diagnosis, or treatment. Always seek the advice of your veterinarian or other qualified animal health provider with any questions you may have.

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