Hidden Valley Animal Clinic

100 Oakhurst Drive
McMurray, PA 15317



Poisonous Plants

The list of potentially dangerous house plants and outdoor plants is extremely long. Identification of all the different types of poisonous plants is not possible here, but a selected list of the most common plants that can be toxic to your pet follows:

  • Alfalfa
  • Amaryllis
  • Angel's Trumpet
  • Arrowgrass - Can be fatal
  • Azalea
  • Bird of Paradise
  • Bittersweet, American - Berries can be fatal
  • Black Locust
  • Bleeding Heart
  • Buttercup
  • Calla, Lily, Wild, Yellow
  • Castor Bean - Can be fatal
  • Cherry Tree - Foliage and bark can cause cyanide poisoning
  • Cherry, Jerusalem, Ordinary, Christmas
  • Chinaberry
  • Chokecherry
  • Chrysanthemum, Pot, Spider
  • Coriara - Causes convulsions
  • Creeping Charlie
  • Crown of Thorns
  • Daffodil
  • Delphinium
  • Dieffenbachia - Can be fatal
  • Easter Lily - Can be fatal
  • Elderberry - Can cause cyanide poisoning
  • Elephant Ears
  • Fern, Bracken, Asparagus, Sprangeri
  • Foxglove
  • Hemlock, Poison, Water - Can be fatal
  • Hemp
  • Holly, English
  • Hyacinth
  • Hydrangea
  • Ivy, English, Ground, Poison, Glocal, Heart, Needlepoint, Ripple
  • Jack-in-the-Pulpit
  • Jasmine
  • Jimsonweed - Can be fatal
  • Larkspur
  • Lily-of-the-Valley - Can be fatal
  • Locoweed - Can be fatal
  • Lupine
  • Milkweed, Common
  • Mint, Purple
  • Mistletoe - Can be fatal
  • Moonweed - Causes convulsions
  • Mushrooms and Toadstools - Can be fatal
  • Nettles
  • Nightshade
  • Oleander - Can be fatal
  • Peach tree - Foliage and bark can cause cyanide poisoning
  • Philodendron - Can be fatal
  • Poinsettia
  • Pokeweed
  • Rhododendron
  • Rhubarb - Can cause convulsions and death
  • Skunk Cabbage
  • St. Johnswort
  • Thorn Apple
  • Tomato Vine
  • Tulip
  • Umbrella Plant - Can be fatal
  • Yew, Japanese, American, Ornamental, English

Symptoms will vary from animal to animal.  Some may eat these plants and will exhibit no symptoms; others will exhibit local irritants such as drooling, vomiting, diarrhea, irritation to the mouth and skin or swelling of the area around the mouth.  Extreme cases of poisoning may cause convulsions, tremors to the heart, respiratory and kidney problems, and in the most extreme cases, coma or even death.  It is good to note that most dogs and cats will vomit after chewing on plants.  This probably does not mean poisoning.  Only severe or persistent vomiting is a danger sign, especially when accompanied with one or more of the other symptoms.

Be sure to know the names of all the plants in and around your home and keep potentially toxic plants out of the areas accessible to your pet.