This list contains plants that have been reported as having systemic effects on animals and/or intense effects on the gastrointestinal tract. Please note that the information contained this list is not meant to be all-inclusive, but a sample on common plants encountered.

 If you suspect a plant has made your pet ill, don’t delay – take it straight to the vet, along with a sample of the plant, for identification. 
If you think your pet has ingested a toxic plant, it may be a medical emergency so please call your local veterinarian or a vet hospital.

Plants Dangerous to Pets

• Anemone or windflower (A. coronaria)
Brunfelsia (Yesterday-Today-Tomorrow plant causes seizures when dogs eat the toxic berries and seed pods.
• Bulbs (onions, plus all the spring-flowering favourites, such as daffodils, tulips, jonquils, and snowdrops)
 Caladium bicolor (indoor foliage plant)
• Castor oil plant (Ricinus communis)
• Chalice vine (Solandra maxima)
• Cherry tree (Prunus serrulata)
• Clematis (the large-flowered hybrids)
• Cotoneaster (Cotoneaster glaucophylla)
• Cycads (seeds on female plants)

Daffodils (Narcissus varieties)
• Daphne (various)
• Delphiniums
• Devil’s ivy (Epipremnum aureum)
• Dicentra (Dicentra spectabilis)
• Dieffenbachia
• Euphorbias (Poinsettias, Euphorbia characias ssp. wulfenii, etc)
• Foxglove (Digitalis purpurea)
• Golden Robinia (R. pseudoacacia ‘Frisia’)
• Hellebore (Helleborus orientalis)
• Heliotrope (Heliotropium spp.) also called Hortensia: highly toxic, it can cause liver destruction when ingested
• Hemlock (Conium maculatum)
• Holly (Ilex varieties)
• Indoor Plants: many are poisonous to pets, so it’s wise to keep all indoor plants out of the reach of puppies and kittens especially, but also adult dogs and cats.
• Iris
• Jerusalem cherry (Solanum pseudocapsicum)
• Jasmine (not clear which ones)

Lantana, also called Red sage, Wild sage, Yellow Sage, and Shrub Verbena. (L. camara, the common one)
• Lilac (Syringa varieties)
Liliums: All parts of the plant are particularly toxic to kittens and cats, causing kidney failure and death; reactions are not quite so severe in dogs.
• Mountain laurel (Kalmia varieties)
• Mushrooms (not clear which ones)
• Nightshade (Solanum nigrum)
• Oaks (Quercus varieties – the acorns are toxic to pets)
• Oleanders (Nerium oleander, Thevetia peruviana)
• Philodendron (many, it appears)
• Pine (e.g., savin, Juniperus sabina, also several others)
• Poinciana (not the tropical tree, but the shrub Caesalpinia pulcherrima)
• Potato plants and green potatoes
Privet (Ligustrum varieties)
• Pyracantha (unclear which one)
• Rhododendron (including azaleas)
• Rhubarb (presumably the leaves)
• Snowdrops (Leucojum)
• Snowflakes (Leucojum)
 Solandra maxima (chalice vine)
 Stephanotis (Madagascar jasmine) (consumption of the seed pods is especially deadly to dogs)
• Strelitzias (Strelitzia reginae, S. nicolai)
Sweet peas
• Toadstools
Tomato Plants

• Tulips
• Walnuts (mouldy nuts near the ground)
• Wandering Jew (Tradescantia albiflora) is very common in gardens especially in moist, shady areas. It is a horrible weed that will grow in near total shade and almost can’t be killed.
• Wisteria
• Yellow oleander (Thevetia peruviana)
• Yew (Taxus varieties)