List of Plants Poisonous to Dogs

Dog Eats Grass
Be careful what your dog chews on.

Every dog owner should have a list of plants poisonous to dogs in order to protect their canine companion from illness or death. There are literally hundreds of plants that would belong on such a list, but the following are a few of the most common.

A List of Plants Poisonous to Dogs

If you have a puppy or an inquisitive adult dog, you know that your pet is not very picky about what he puts in his mouth. This can be very dangerous if the dog decides to chew on something poisonous. Most people know to keep chemicals away from their pet, and many are aware of the potential dangers of chocolate for dogs, but do you know that many common houseplants and landscape plants are deadly?

Houseplants

Be careful about the plants you choose to decorate your home. Some are extremely toxic to dogs. (Note: Plants with "spp" in the name indicates all species of the plant are toxic.)

Plant Symptoms
Aloe Vera
Aloe Vera
Vomiting, diarrhea, tremors.
Amaryllis (Amaryllis spp)
Amaryllis (Amaryllis spp)
Vomiting, diarrhea, tremors, abdominal pain, hyper-salivating.
(Asparagus setaceus)
Asparagus Fern (Asparagus setaceus)
Ingestion of the berries will cause vomiting, diarrhea and abdominal pain; can also cause allergic dermatitis with prolonged skin contact.
Azalea (Rhododendron spp)
Azalea (Rhododendron spp)
Causes vomiting, diarrhea, hyper-salivating, weakness, coma, cardiovascular collapse and death.
Begonia (Begonia spp)
Begonia (Begonia spp)
Causes burning of the mouth, lips and tongue, drooling, vomiting and problems swallowing.
Caladium (Caladium hortulanum)
Caladium (Caladium hortulanum)
Causes intense burning in the mouth, drooling, vomiting and problems swallowing.
Calla Lily (Zantedeschia aethiopica)
Calla Lily (Zantedeschia aethiopica)
Causes irritation of the mouth, lips, and tongue; drooling, vomiting, and problems swallowing.
Chrysanthemum (Chrysanthemum spp)
Chrysanthemum (Chrysanthemum spp)
Impairs coordination, causes diarrhea and vomiting, hyper-salivation and dermatitis.
Cyclamen (Cyclamen spp)
Cyclamen (Cyclamen spp)
Causes vomiting, salivating, diarrhea and death if tubers (roots) are eaten.
Dieffenbachia (Dieffenbachia amoena)
Dieffenbachia (Dieffenbachia amoena)
Causes burning of the lips, mouth, and tongue, drooling, vomiting and trouble swallowing.
Gardenia (Gardenia jasminoides)
Gardenia (Gardenia jasminoides)
Causes vomiting and diarrhea.
Geranium (Pelargonium spp)
Geranium (Pelargonium spp)
Causes vomiting, depression, anorexia, and dermatitis.
Jade (Crassula arborescens)
Jade (Crassula arborescens)
Causes nausea and vomiting.
Philodendron
Philodendron
Causes swelling and burning of the mouth and tongue as well as digestive issues, spasms, and seizures.
Sago Palm (Cycas Revoluta)
Sago Palm (Cycas Revoluta)
Causes vomiting, diarrhea, and in some cases, liver failure. The survival rate for this poisoning in dogs is only 32 - 50%.
ZZ Plant (Zamioculcas)
ZZ Plant (Zamioculcas)
Causes vomiting and diarrhea.

Landscape Plants

Common plants in your yard may also make your dog very ill. They may be beautiful in your garden, but they are also dangerous for your pet. Here are just a few to be careful of:

Image Symptoms
American Bittersweet (Celastraus scandens)
American Bittersweet (Celastraus scandens)
Causes vomiting, diarrhea, convulsions, and weakness.
American Holly (Ilex opaca)
American Holly (Ilex opaca)
Causes diarrhea, vomiting, and depression.
American Yew (Taxus canidensus)
American Yew (Taxus canidensus)
Causes tremors, breathing problems, vomiting, seizures, sudden death.
Bird of Paradise (Strelitzia reginae)
Bird of Paradise (Strelitzia reginae)
Will cause drowsiness as well as mild nausea and vomiting.
Black Walnut (Juglans nigra)
Black Walnut (Juglans nigra)
Toxic mold grows on the nuts which can cause tremors and seizures.
Carnation (Dianthus caryophyllus)
Carnation (Dianthus caryophyllus)
Causes mild stomach problems and mild dermatitis.
Castor Bean (Rincinus communis)
Castor Bean (Rincinus communis)
Causes mouth irritation, thirst, vomiting, diarrhea, kidney failure, death.
Crocus (Colchicum autumnale)
Crocus (Colchicum autumnale)
Causes bloody vomiting, diarrhea, shock and mouth irritation; also causes suppression of bone marrow production and multi-organ damage.
Daffodil (Narcissus spp)
Daffodil (Narcissus spp)
Causes vomiting, diarrhea, salivation and convulsions if a large amount of the bulb is eaten.
Gladiola (Gladiolus species)
Gladiola (Gladiolus species)
Causes vomiting, salivating, drooling, diarrhea and lethargy.
Ivy (Hedera Helix)
Ivy (Hedera Helix)
Symptoms range from something minor such as breathing difficulties or a rash, and can be as serious as paralysis or even coma.

Human Food Crops

Plants that people commonly enjoy can be poisonous to dogs. Food crops may be fruits, vegetables or herbs. A few of the foods you should avoid giving your dog include:

Image Symptoms
Apple
Apple
Stems, leaves, and seeds cause red mucous membranes, dilated pupils, problems breathing and shock.
Apricot (also plum, peach, cherry)
Apricot (also plum, peach, cherry)
Seeds, stems, and leaves cause the same symptoms as apples.
Avocado
Avocado
Leaves, seeds, bark and fruit cause vomiting and diarrhea.
Calamondin
Calamondin

This plant causes vomiting and diarrhea.

Chamomile
Chamomile
This plant causes vomiting, diarrhea, and allergic reactions. Bleeding issues may surface with long-term use.
Coffee
Coffee
Beans and grounds cause panting, restlessness, muscle twitches and increased heart rate (similar to chocolate).
Garlic
Garlic
Too much raw garlic causes the breakdown of red blood cells, vomiting, panting, weakness, elevated heart rate, and blood in urine.
Grapes
Grapes
Fresh and dried (raisins) cause kidney failure and possibly death.
Grapefruit
Grapefruit
This citrus causes vomiting, diarrhea, and depression.
Onion
Onion
This causes the same problems as garlic; they both contain the same toxic chemical, thiosulphate.
Tomato
Tomato
Green parts of the plant cause diarrhea, loss of appetite, weakness, confusion, slow heart rate.

Where to Find More Details

This is by no means an all-inclusive list of plants poisonous to dogs. For a more extensive list of nearly 400 plants, visit the ASPCA website. Toxic plants should be eliminated from your home or closely monitored so your dog is unable to access them. Food plants that are toxic to your dog should be securely fenced so your dog cannot get near them if they cannot be removed from your landscape. If you suspect that your dog has eaten something he shouldn't, call your vet immediately or call the ASPCA emergency poisoning hotline at 1-888-426-4435.

List of Plants Poisonous to Dogs