Plants That Are Poisonous to Dogs

French bulldog sitting in garden of purple flowers

 Purple Collar Pet Photography/Getty Images

Many types of plants and flowers can be poisonous to your dog. Effects range from mild to severe depending on the type of plant and the quantity consumed. Some plants will only cause slight stomach upset, while others can cause seizures, coma or even death. 

Ideally, toxic plants on your own property should be removed. Houseplants are a bit easier to control; simply do not keep toxic plants inside your home and you have removed the risk.

If you are planning to get new plants or flowers, research them ahead of time to learn whether or not they are toxic.

Find out what plants and flowers may be poisonous to dogs with the following list of common toxic plants and flowers. Please note that this is not a complete list. If you have a particular plant in mind for your home or yard, you should thoroughly research it first. If you suspect your pet has come into contact with a potential toxin, please contact your vet or animal poison control immediately.

Plants Poisonous to Dogs

AloeAloe veravomiting, diarrhea, loss of appetite, depression, tremors, change in urine color
AmaryllisAmaryllis sp.vomiting, diarrhea, loss of appetite, depression, abdominal pain, excessive salivation, tremors
Apple and CrabappleMalus sylvestrusseeds, stems, and leaves can result in red mucous membranes, dilated pupils, difficulty breathing, panting and shock
Autumn Crocus/Meadow SaffronColchicum autumnaleoral irritation, bloody vomiting, diarrhea, shock, organ damage, bone marrow suppression
Azalea/RhododendronRhododendron spp.vomiting, diarrhea, excessive salivation, weakness, coma, death
Calla Lily/Trumpet Lily/Arum LilyZantedeschia aethiopicaoral irritation and pain, excessive salivation, vomiting, difficulty swallowing
Castor Bean/Castor Oil PlantRicinus communisoral irritation and burning, increased thirst, vomiting, diarrhea, kidney failure, convulsions; Note: Beans are highly toxic.
Chrysanthemum/Mum/DaisyChrysanthemum spp.vomiting, diarrhea, excessive salivation, loss of coordination, dermatitis
CyclamenCyclamen spp.excessive salivation, vomiting, diarrhea, heart arrhythmias, seizures, death
Daffodil/NarcissusNarcissus spp.vomiting, salivation, diarrhea, convulsions, low blood pressure, tremors, heart arrhythmias
DumbcaneDieffenbachiaoral irritation and burning, excessive salivation, vomiting, difficulty swallowing
Elephant EarsCaladium hortulanum and Colocasia esculentaoral irritation and burning, excessive salivation, vomiting, difficulty swallowing
English IvyHedera helixvomiting, abdominal pain, excessive salivation, diarrhea
FoxgloveDigitalis purpureaheart arrhythmias, vomiting, diarrhea, weakness, death
HostaHosta platagineavomiting, diarrhea, depression
HyacinthHyacinthus orientalisvomiting, diarrhea, depression, tremors
HydrangeaHydrangea arborescensvomiting, diarrhea, depression
IrisIris speciesexcessive salivation, vomiting, diarrhea, lethargy
Lily of the ValleyConvallaria majalisvomiting, irregular heartbeat, low blood pressure, disorientation, coma, seizures
Marijuana/HashishCannabis sativadepression, vomiting, loss of coordination, excessive salivation, dilated pupils, low blood pressure, low body temperature, seizure, coma
Mistletoe/American MistletoePhoradendron flavescensgastrointestinal complications, cardiovascular collapse, difficulty breathing, slow heart rate, behavior changes, vomiting, diarrhea
OleanderNerium oleandervomiting, diarrhea, loss of coordination, shallow/difficult breathing, muscle tremors, collapse, cardiac failure
Peace LilySpathiphyllumoral irritation and burning, excessive salivation, vomiting, difficulty swallowing
PhilodendronPhilodendron spporal irritation and burning, excessive salivation, vomiting, difficulty swallowing
Pothos/Devil's IvyEpipremnum aureumoral irritation and burning, excessive salivation, vomiting, difficulty swallowing
Sago PalmCycas revoluta, zamia speciesvomiting, black (tarry) stools, jaundice, increased thirst, bruising, blood clotting problems, liver damage, death
ScheffleraScheffleraoral irritation and burning, excessive salivation, vomiting, difficulty swallowing
TobaccoNicotiana glaucahyperexcitability then depression, vomiting, loss of coordination, paralysis
TulipTulipa speciesvomiting, depression, diarrhea, excessive salivation
Yew/Japanese YewTaxus sp.sudden death from acute cardiac failure (early signs include muscular tremors, difficulty breathing, seizures

In Case of Emergency

In case of toxin exposure, keep a list of important phone numbers in a visible, easily accessible location. Be sure pet sitters and other people who might be in your home are aware of the location of the list. The following phone numbers should be included:

  1. Your primary veterinarian
  1. One or more nearby 24-hour veterinary emergency clinics
  2. ASPCA Poison Control: (888) 426-4435 (possible fee)
  3. Pet Poison Hotline: (855) 764-7661 (possible fee)
  4. An emergency contact number for you and your dog's co-owner (if applicable)