The ASPCA (American Society for the Prevention of Cruelty to Animals) Poison Control Center is an excellent resource for information on toxic plants, as well as animal poison control in general:

www.aspca.org/pet-care/poison-control/plants/

If you think that your pet may have ingested a potentially poisonous substance, prompt action is necessary. Call a veterinarian immediately. The veterinarian will need to know what plant was eaten, so take a sample of the plant with you to the hospital.

You may also call ASPCA Poison Control Center at (888) 426-4435.
(Please note that a $60 consultation fee may be applied to your credit card.)

The following list is intended as a quick reference and is not all-inclusive. If the plant you are looking for is not on this list, please refer to the website above for a searchable database of toxic (and non-toxic) plants.

Amaryllis (bulb)
Andromeda
Appleseeds
Arrowgrass
Avocado
Azalea
Bittersweet
Boxwood
Buttercup
Caladium
Castor Bean
Cherry Pits
Chokecherry
Climbing Lily
Crown of Thorns
Daffodil (bulb)
Daphne
Delphinium
Dieffenbachia
Dumb Cane
Easter Lily
Elephant Ear
English Ivy
Elderberry
Foxglove
Hemlock
Holly
Hyacinth (bulbs, and leaves and flowers in quantity)
Hydrangea
Iris (rootstock and rhizome)
Japanese Yew (seeds and leaves)
Jasmine (berries)
Jerusalem Cherry
Jimson Weed
Laburnum
Larkspur
Laurel
Lily of the Valley
Locoweed
Marigold
Marijuana
Mistletoe
Monkshood
Morning Glory (seeds)
Mushrooms
Narcissus (bulb)
Nightshade
Oleander
Peach
Philodendron
** Poinsettia, in spite of its reputation, isn’t toxic, though it can cause an upset stomach.
Poison Ivy
Privet
Rhododendron
Rhubarb leaves
Snow on the Mountain
Stinging Nettle
Sweet Peas (especially the “peas”, which are seeds)
Tiger Lily
Toadstool
Tobacco
Tomato plant leaves
Walnuts
Wisteria (pods and seeds)
Yew

updated 6/09

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