Plants Poisonous to Cats and Dogs:

Although this is probably not a complete and exhaustive list, it does cover many plants that many people enjoy around their house. Even though these are toxic, they may not pose a problem simply by their presence, but you should be aware of their potential to harm your pets if the exposure route and level are just right.

Alfalfa (Medicago sativa)

Aloe Vera

Amaryllis

Apple (seeds)

Apple Leaf Croton

Apricot seed

Asparagus Fern

Autumn Crocus

Avocado

Azalea

Baby's Breath

Bittersweet

Bird of Paradise

Branching Ivy

Buckeye

Buddhist Pine

Caladium

Calla Lily

Castor Bean

Ceriman

Charming Dieffenbachia

Cherry (seeds and leaves)

Chinese Evergreen

Christmas Rose

This plant is moderately toxic most often presenting with intestinal upset symptoms, but can have worse symptoms if large amounts are ingested.

Cineraria

Clematis

Cordatum

Corn Plant

Cornstalk Plant

Croton

Cuban Laurel

Cut-leaf Philodendron

Cycads

Cyclamen

Daffodil

Devil's Ivy

Dieffenbachia

Dracaena Palm

Dragon Palm

Dumb Cane

Easter Lily

Elaine

Elephant Ears

Emerald Feather

English Ivy

Fiddle Leaf Fig

Florida Beauty

Foxglove

Fruit Salad Plant

Geranium German Ivy

Giant Dumb Cane

Glacier Ivy

Gold Dieffenbachia

Gold Dust Dracaena

Golden Pothos

Hahn's Self-Branching Ivy

Heartland Philodendron

Hurricane Plant

Indian Rubber Plant

Janet Craig Dracaena

Japanese Show Lily

Jerusalem Cherry

Kalanchoe

Lacy Tree Philodendron

Lily of the Valley

Mother-in-law's Tongue

Madagascar Dragon Tree

Marble Queen

Marijuana

Mexican Breadfruit

Miniature Croton

Mistletoe

This plant can be very toxic and potentially fatal, especially the European variety. The main organ system affected is the heart; however, most common ingestion of the American mistletoe usually results in mild stomach and intestinal upset.

Morning Glory

Narcissus

Needlepoint Ivy

Nephytis

Nightshade

Oleander

Onion

Oriental Lily

Peace Lily

Peach (seeds and leaves)

Pencil Cactus

Plumosa Fern

Poinsettia

The true level of the toxicity of these plants has been exaggerated. This plant is more often an irritant rather than a truly toxic plant.  Signs most often reported when this plant is ingested are vomitting or diarrhea, anorexia, and depression.

Poison Ivy

Poison Oak

Pothos

Potato Plant

Precatory Bean

Primrose

Red Emerald

Red Princess

Red-Margined Dracaena

Rhododendron

Ribbon Plant

Saddle Leaf Philodendron

Sago Palm

Although they are very attractive plants that do fairly well in our climate, many people do not realize just how deadly the sago Palm can be. During the summer months of 2009 we lost 2 patients to Sago Palm toxicity despite early aggressive medical care that included treatment at a specialty center. We at PPHC wanted to make people aware just how toxic and deadly these plants are for animals. The entire plant is toxic: seeds, leaves, bark, meat, etc. The seeds seem to be a bit more toxic than the rest but the difference is insignificant to most animals. The plant causes a sudden aggressive inflammation and failure of the liver. Even if the owner catches their pet in the act of eating the plant, induces vomiting, gets treated with activated charcoal and IV fluids, the chances of survival are still very poor. Both patients we saw that had succumbed to this plant appeared to get better initially and then there was almost a "second wave" of liver failure that led to their demise. If you have Sagos, and you want to keep them, please try moving them to a section of the yard where your pets never go, or provide barriers for your pets that they cannot get past.

Satin Pothos

Schefflera

Silver Pothos

Spotted Dumb Cane

String of Pearls

Striped Dracaena

Sweetheart Ivy

Swiss Cheese Plant

Taro Vine

Tiger Lily

Tomato Plant

Tree Philodendron

Tropic Snow Dieffenbachia

Weeping Fig

Yew