There are a number of common plants which may be toxic to dogs and cats and should be avoided. These include:
| Arum Lily | Autumn Crocus | Australian Flame Tree | Avocado | Azalea Baneberry |
| Bird Of Paradise | Bishop's Weed | Black Laurel | Black Locust | Bleeding Heart |
| Bloodroot | Bluebonnet | Blue-Green Algae | Boxwood | Bracken Fern |
| Buckthorn | Bulb Flowers | Burdock | Cacao | Camel Bush |
| Caladium | Calla Lily | Cardinal Flower | Chalice | Cherry Tree |
| Chinaberry Tree | Clematis | Cocklebur | Coffee | Coral Plant |
| Coriander | Dieffenbachia | Elderberry | Elephant Ear (Taro) | Eucalyptus |
| Euonymus | False Hellebore | Flame Tree | Felt Plant | Firethorn |
| Heliotrope | Hemlock | Henbane | Holly | Honeysuckle |
| Horse Chestnut | Horsetail | Hydrangea | English Ivy | Jasmine |
| Jimsonweed | Lantana | Larkspur | Lily Of The Valley | Easter Lily |
| Lupine | Marijuana | Mandrake | Mexican Poppy | Milkweed |
| Vetch | Yellow Jasmine | Mistletoe | Mock Orange | Monkshood |
| Moonseed | Morning Glory | Mountain Laurel | Mushrooms | Nightshades |
| Oak | Oleander | Periwinkle | Philodendron | Pigweed |
| Poinciana | Poinsettia | Poison Ivy | Poison Oak | Pokeweed |
| Potato Shoots | Privet | Pyricantha | Rain Tree | Ranunculus (Buttercup) |
| Rape | Red Maple | Snowdrop | Spurges | Sweet Pea |
| Tansy | Tobacco | Wisteria | Yews |