The lemon tree is toxic to house pets as well as dogs and horses. Some rubber tree plants (such as Japanese/Chinese/jade rubber plant and Indian rubber plant) are toxic to cats and dogs. There are numerous plants that are poisonous to dogs. Toxins: Insoluble calcium oxalates and unidentified, toxic alkaloids. Your dog may also drool a lot and vomit, or even have a hard time breathing, Dr. Hohenhaus says. The ASPCA Animal Poison Control Center reported that in 2017, 5 percent of all calls were related to pets ingesting plants toxic to them, making it ninth on their list of the top 10 pet toxins. Toxic element: Unknown. While the berries aren’t toxic to dogs, the leaves, seeds and bark are. Most toxic garden plants, such as granny’s bonnet, bluebells and hellebores, need to be eaten in such huge quantities to cause harm, that they’re … It does NOT contain every possible variety. Calla lilies are beautiful, but at the same time, they are one of the poisonous plants for dogs and cats. Beware, though: These plants contain insoluble calcium oxalate crystals, which can irritate your dog’s mouth and lips. Unfortunately, there are many large shade trees that are harmful to livestock like horses, cattle, sheep, goats and swine. Plants very poisonous to dogs. Many plants that are poisonous to dogs are very common in backyards.These toxic time-bombs range from being only mildly toxic (for example, causing vomiting) to being responsible for serious canine health problems.If you wish to err on the safe side, thoroughly research all the vegetation and berries that your dog has access to. In fact, there are tons of poisonous plants for dogs that can harm your pet. You may also see other symptoms, like diarrhea, stomach pain, and drooling, and it can be fatal. Aloe is on the list of poisonous plants for dogs, even though it’s great for humans. If you fear your dog has ingested the leaves of a poisonous tree, contact your veterinarian immediately. Oleander is a common landscaping plant, especially on the West Coast. This tree is especially deadly for horses and if you have them on your property, they should be removed to ensure that livestock are unable to reach them. It is important to note that the chemical concentration is highest in the fall making fallen leaves more dangerous than living ones. 34. Topical poisoning can result in excessive skin irritation, itching, and redness. There is also the potential for obstruction due to the size and shape of the acorns. This is a list of the most common types of dog poisonous plants. All parts of these flowering beauties contain grayantoxin, and the reaction your pup gets depends on how much they’ve eaten. They may be pretty, but plants aren’t necessarily pet friendly. These plants make excellent hedges, since they are like small evergreen trees or shrubs with needle-like leaves and small red berries. Since shade is important for all animals as protection against summer's heat, removing poisonous varieties of shade trees like red maple, oak, cherry and plum trees from your pastures or paddocks can leave you with a dilemma. Every inch of this plant is poisonous to dogs—from the flower petals to the pointy, long leaves. Because dogs are omnivores, it is not uncommon to see them nibbling at grass and plants. Garden Plants Poisonous to Dogs . Eating a few leaves or bulbs can also make your pup throw up,  and cause low blood pressure, disorientation, seizures or a coma. Chinese Evergreen; Chockcherries: This is a wild shrub with leaves, cherries and pits that are poisonous to dogs. This does not represent a complete list of all poisonous plants and is only intended as a guide. The Northern red oak (Quercus species) is a rapidly growing deciduous tree native to the Eastern United States. Ingestion of the stems, leaves, and seeds can result in dilated pupils, difficulty breathing, panting, darkened gum and urine, seizures, and shock. Decreased appetite, drooling, vomiting, diarrhoea, depression, skin irritation. With its stiff fronds, the sago palm looks like a tiny palm tree and can live indoor or outdoor. The seedpods from mimosas can present a danger to pets. However, its seedpods are poisonous to pets as they interfere with the neurotransmitters which send signals between nerve cells. However, some species of fruit trees, particularly apple/crabapple, apricot, cherry, peach, and plum can be toxic to dogs, cats, and horses. When these plants bloom in the fall, their delicate flowers rise out of the ground without leaves—one reason why they’re also known as naked ladies. Red maple trees. Other early warning signs your dog may display include seizures and muscle tremors.