Plants Poisonous to Animals

As you will see from the below noted list, the number of plants that may be poisonous to your pet is quite numerous. Therefore, to be on the safe side, it is suggested that you aviod letting you pet ingest any plant not native to it's diet and check with your veterinarian. Please note that plant names vary in different regions, so there may be others that are not on this list.

It all boils down to supervision. PLEASE try to put all houseplants up out of your pet's reach, and please, please, please supervise your pets while they are outdoors!

Amaryllis
Asparagus fern
Azalea
Bird of Paradise
Castor bean (can be fatal)
Cherry (Jerusalem, ordinary, bitter, wild black)
Creeping Charlie
Crown of thorns
Diffenbachia (can be fatal)
Easter lily (nontoxic in humans but often fatal in cats
Elderberry
Elephant ears
Glocal ivy
Heart ivy
Ivy
Japanese yew
Lilly of the valley (can be fatal)
Mistletoe (can be fatal)
Needlepoint ivy
Ornamental Yew
Philodendron (can be fatal)
Poinsettia (leaves can be fatal)
Pot chrysanthenlum
Rhubarb
Precatory bean
Ripple ivy

Aconite
Alfalfa
American yew
Angel's trumpet
Apricot, almond, apple
Arrowgrass (can be fatal)
Azalea
Baneberry
Belladonna
Bird of paradise
Birdsfoot Trefoil
Bittersweet (the berries can be fatal)
Black locust
Black Nightshade
Black walnuts
Blackberry Bleeding Heart
Bloodroot
Bouncing Bet
Bracken or Brake Fern
Buckwheat
Buffalo Bur
Burdock
Buttercup
Cactus
Candlenut Tree
Cardinal Flower
Celandine
Cherry tree (foliage and bark)
China berry (causes convulsions)
Christmas Rose
Climbing nightshade
Clover
Cloves
Cocklebur
Common Nightshade
Coriara (causes convulsions)
Corn Cockle
Corn Lily
Cow Cockle
Cowslip
Crowfoot
Crown of thorns
Curly Dock
Daffodil
Daphne
Death Camas
Delphinium
Devil's Trumput
Dewberry
Dock
Dog Bane
Doll's Eyes
Downy Thornapple
Drooping Leucothoe
Dumb cane
Dutchman's Breeches
Elderberry
English holly
English walnuts
English yew
Ergot
Fale Hellbore
Ferns
Fiddleneck
Fireweed
Flax
Foxglove
Gill-over-the-Ground
Golden Chair
Grasses(foxtail, wild barley, Johnson, June, Sudan, and Ripgut)
Great Lobelia
Groundsels
Halogeton
Hawthorn
Hemlock ~ (can be fatal)
Henbane
Honey locust
Horsebrush
Horse Chestnut, Buckeyes
Horse Nettle
Horse Tails
Hyacinth
Hydrangea
Irises
Ivy, Poision, Oak, and Sumach
Jack-in-the-Pulpit
Japanese Pieris
Jasmine
Jimsonweed (can be fatal)
Kentucky Coffee Tree
Laburnum
Lamb's Quarters
Lantana
Larkspur
Lily of the valley
Locoweed (can be fatal)
Lucerne
Lupine
Mescal bean
Mandrake
Marigold
Marijuana
Mayapple
Milkweed
Mock orange
Monkshood
Moonweed (causes convulsions)
Mountain Fetterbush
Mushrooms and toadstools (cats like to eat them; can be fatal)
Nettles (stinging, bull, and spurge)
Nightshade, Black
Oak tree
Ohio Buckeye
Oleander
Onions
Osage Orange
Peach tree (leaves and bark can cause cyanide poisoning)
Peas
Philodendron
Pigweed
Poision Ivy, Oak, and Sumach
Pokeweed
Ponderosa Pine
Poppy, White
Privit
Purple foxglove
Purple Mint
Quince
Ragworts
Rhododendron
Rhubarb (can cause convulsions and death)
Rose
Sage (red, yellow)
Senecio
Sensitive Fern
Sierra Laurel
Skunk cabbage
Snow on the mountain
Soapberry
Spinach
Spurges
Squirrel Corn
Star of Bethlehem
St. Johnswort
Tobacco
Tomato vine
Tinsel tree - milk bush
Tulip
Tung Oil Tree
Vetch
White Snakeroot
Wild Onion
Wisteria
Wolfsbane
Yellow Star Thistle
Yew

For more information on these plants and plants significant to your region, please visit this Poison Plants Sites link.