Rhubarb stalks contain oxalic acid, which is toxic when eaten in large amounts. Learn which plants thrive in your Hardiness Zone with our new interactive map! This website uses cookies. It is mandatory to procure user consent prior to running these cookies on your website. Some are houseplants that are sitting in your window. Symptoms of rhubarb poisoning in grazing animals include diarrhea, depression, trembling, and drinking and urinating more frequently. Although the concentration of toxic substances in the leaves vary, the leaves are somewhat bitter and most animals won’t ingest enough of the plant to cause notable health issues. Rhubarb | ASPCA … Any calcium oxalate plants — including philodendrons, Chinese evergreens, Virginia creepers, spinach, agaves, tea leaves, rhubarb and taro. Subsequently, one may also ask, are rhubarb leaves poisonous to animals? I agree to Pet Poison Helpline's use of cookies on this website. The simplest way to keep marauding deer and raccoons out of the rhubarb is to build a wooden frame that fits over the rhubarb plant. Secure the frame at the base with landscaping pins so the deer can't knock it over. Signs of Plant Poisoning in Cows. Rarely, acute renal failure can be seen from ingestion of plants or fruit containing these soluble oxalate crystals. University of Illinois Extension; Rhubarb; Ron Wolford, et al. While the stems are edible, the sour leaves contain potent toxins that can irritate the digestive system, and cause severe kidney damage. Rhubarb stalks contain oxalic acid, which is toxic when eaten in large amounts. Soluble calcium oxalates are present in varying degrees in all parts of the plant. Cows and sheep will graze on wild rhubarb in fields, but in a home landscape, this shouldn't be a problem. Plan the perfect garden with our interactive tool →, Hemera Technologies/AbleStock.com/Getty Images, The Ohio State University Extension; Growing Rhubarb in the Home Garden; Marianne Riofrio, University of Vermont Extension: Plant Poisoning of Livestock in Vermont, Northern Gardening: Deer Resistant Plants, Oregon State University Extension; Discourage Raccoons; Carol Savonen. Rhubarb is a common plant grown for edible consumption, and is also known as the pie plant. When ingested in large enough quantities in small animals, it can result in poisoning in dogs, cats, & even humans. The leaves contain soluble oxalate crystals, with less of the crystals being prevalent in the stalk. The content of this page is not veterinary advice. When soluble oxalate salts are absorbed from the gastrointestinal tract, they bind with body’s calcium, resulting in a sudden drop in calcium. Amaryllis: (Hippeastrum spp) All parts are toxic to cats and dogs, but especially the bulbs. Not all plants poisonous to cattle will be lethal or make animals severely ill. It’s important to be on the lookout for any signs that your cows may have gotten into some toxic plants. Rhubarb’s leaves are toxic making them inedible. We’ll share with you a list of plants that are poisonous to dogs. These cookies will be stored in your browser only with your consent. Clinical signs of this type of poisoning include drooling, inappetance, vomiting, diarrhea, lethargy, weakness, tremors, bloody urine, and changes in thirst and urination. In general, soluble calcium oxalate poisoning is more commonly associated with large animals (from livestock chronically grazing). Rhubarb is used for two distinct purposes. Raccoons may also occasionally eat rhubarb. However, when ingested in large enough quantities in small animals, it can result in poisoning in dogs, cats, and even humans. You also have the option to opt-out of these cookies. That’s why rhubarb stems are edible, but the leaves are not. That said, rhubarb leaves aren’t pure oxalic acid, and it would take around 11 pounds of the leaves to secure that much. Obviously, there was something in the smell of the rhubarb that the cat probably loved, but was overstimulated by it. Deer are the most likely grazers and will eat rhubarb down to the ground. Use a process of elimination to identify the animal eating your rhubarb and then take action to protect young, tender stalks. Rhubarb is a Perennial Rhubarb, like all perennial vegetables, will flower as part of its growth, as shown in our top photo. "The Garden Primer"; Barbara Damrosch; 2008. Rhubarb Are Toxic To Pets. Poinsetta: (Euphorbia pulcherrima) This plant is mildly toxic to cats and dogs. The scientific name for this plant is Rheum rhabarbarium. If you think your pet has eaten something potentially toxic, call Pet Poison Helpline or seek immediate veterinary treatment. Black spots on the stems of the plants indicate rhubarb curcolio; jagged holes indicate slug or snail activity. A protective family dog can also deter pests. Set out slug traps if slugs are destroying the rhubarb. 24/7 ANIMAL POISON CONTROL … A number of factors (amount of substance ingested, size of the animal, allergies, etc.) The rhubarb leaves contain a poison (oxalic acid) and eating the leaves is toxic for deer and humans alike. This website uses cookies to improve your experience while you navigate through the website. For more detailed information about how we use cookies, please review our. If you think that your animal is ill or may have ingested a poisonous substance, contact your local veterinarian or our 24-hour emergency poison hotline directly at 1-888-426-4435. Toxicity due to rhubarb has been observed in dogs, cats, humans, and large animals. The simplest way to keep marauding deer and raccoons out of the rhubarb is to build a wooden frame that fits over the rhubarb plant. Symptoms of rhubarb poisoning in grazing animals include diarrhea, depression, trembling, and drinking and urinating more frequently. The same high concentration of oxalic acid in rhubarb leaves that makes them too toxic for humans to consume is equally devastating to aphid populations on roses and other prized plants. And its leaves are spectacularly poisonous. All Rights Reserved. determine what is toxic to a particular pet. Other options include commercial deer repellents or scare tactics, like motion-sensing lights. About 25 grams of pure oxalic acid is the average amount needed to kill a human. Animals are rarely poisoned by consuming small amounts of leaves, but in large amounts, rhubarb leaves can cause kidney failure and even death. Pets may be likely to try to eat the berries over winter. Just be sure not to use it right before harvest because rhubarb leaf is poisonous. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Julie Christensen is a food writer, caterer, and mom-chef. Most animals avoid rhubarb, but hungry animals will eat almost anything.