DMCA Notice. The southern bush honeysuckle (Diervilla sessilifolia) grows in the Southeastern U.S. in zones 5 through 8. Gardenia jasminoides. Image Credit: Lesca Smith, Shutterstock Crepe Jasmine Affected animals develop central lobular necrosis of the liver, and renal tubular necrosis. I think in a worst-case scenario, a cat might get an upset stomach and maybe vomit or have some diarrhea, she says. Miller holds a diploma in social services from Clarke College in Belleville, Ontario. Explanation of Toxicity Levels. The plant part is inside the toy so that there is no ingestion of the plant. These include lack of appetite, excessive drooling, diarrhea and vomiting. The first question that always comes to mind when using essential oils oncats is in regards to the safety of using them on your pet. The fleshy fruits of cherries, plums and peaches are edible, yet their leaves and pits contain deadly cyanide. One essential part of a sheep's day is that of grazing. Always highly diluted, my cat is fine with it. Namely, experts claim that the cats who are not affected by catnip are usually the ones that do not belong to breeds from areas where catmint was cultivated in the past. There are few different types of diffusers available on the market, all of which release essential oils into the air in a different way. Theres no denying the beauty of freshly-cut tulips or a garden bed of lilies, but flowers like these can make cats sick or even be fatal. In fact, because the wood can result in choking or damage to a cats mouth, it should only be given to our feline friends when it is contained within a tough toy. and taking steps to prevent access to them can go a long way to keeping your cat safe. In the United States and Canada, Tatarian honeysuckle is an invasive species and noxious weed. Peppermint oil is NOT SAFE for cats. For balancing, calming and relaxing your cat, Lavender or Valerian are ok to use. Is the flower edible for humans? In general, it is good to keep in mind that certain pets may develop allergies, even though a food may be safe overall for an animal species. Plants produce toxins as a survival mechanism, says. We lost our cat two years ago. I have to distinguish here, that there is a difference between using essential oils topically on your cat, vs. diffusing them around your home for your own well-being and/or that of your feline friend. Honeysuckle berries and possibly flowers and leaves are toxic to cats and should not be given to them. To reduce stress and depression in your cats, which is surprisingly common to the feline species, Help your shy cat develop more courage with. However, some poisonous plant resources, like the University of Georgia, the Ladybird Johnson Wildflower Center, and Ohio State University, do confirm that certain honeysuckle varieties contain toxic compounds that can be harmful in large quantities. Honeysuckle plants can be climbers or shrubs. Lantana, those beautiful flowers of pink, red, orange, and yellow are toxic to both cats and dogs. Even if cats do make contact with lilacs, they shouldnt become seriously ill, says Bischoff, who frequently cuts lilacs in the spring and places them around her own home. So far no issues with my cat. Dwarf bush honeysuckle shrubs (Diervilla lonicera) grow in USDA zones 4 through 8 and are smaller than their cousins. Horseradish (Amoracia rusticana) Even if youre careful about what you plant outside on your own property, you cant control what your neighbors grow. Terms of Service. Honeysuckle grows in USDA plant hardiness zones 4 to 9 depending on the specific type, with trumpet honeysuckle (Lonicera sempervirens) doing best in the Southeast and Japanese honeysuckle (Lonicera japonica) preferring climates like that of the Midwest. At last point of research, there were over 68 varieties of honeysuckle in this species. However, they are highly toxic to dogs. Sunflowers are also generally considered non-toxic for cats, but veterinarians say they may cause minor stomach upset or vomiting if ingested. Plants cant run away, so they have to come up with other ways to prevent getting eaten by insects and animals.. Knowing the basics about the potential effects of essential oils to your cat is vital. Ironically, pyrethrin flea sprays were once made from chrysanthemum flowers, says Bischoff. If Cape honeysuckle (Tecoma capensis) is the plant you mean, then I can answer that Cape honeysuckle (Tecoma capensis) is not poisonous and does not harm birds nesting in it or eating it. One of springs most aromatic flowers, the common lilac (. ) A few effective flea repellents are Rosemary oil and Cedarwood oil, if diluted or diffused properly. Dr. Cathy Barnette is a small animal veterinarian with 13 years of clinical experience. The woody part of the plant is what is made into toys and sprays for cats. In warmer climates, they may bloom all year round. Depending on the type of flower and amount ingested, symptoms can vary from mild to fatal, says Kelley. Dec 24, 2010 #8 ChickenCanoe Enabler Although it's unlikely that your cat will eat lilies, there's a risk that they may come into contact with the flower's pollen by rubbing up against it and then licking their fur. The word Cape in this common name refers to the Cape of Good Hope in Africa, where this plant is native, not to Cape Cod where it would freeze and die in winter. Catnip is a plant that comes from the mint family. The word "Cape" in this common name refers to the Cape of Good Hope in Africa, where this plant is native, not to Cape Cod where it would freeze and die in winter. These products are made without using harsh chemicals known to be toxic or harmful to pets. For dogs, goldenrods have a few worthy applications. A lot of customers return to purchase new toys as their cats love them. { It literally says that eucalyptus is TOXIC to cats in this exact article. Tecoma is a contraction of the Mexican name for one of the species: tecomaxachitl ( Mutshinyalo and . European Pennyroyal (Mentha pulegium) 1. If your cat is healthy and well, and has a way out of the room youre in with your tea tree oil applied, you should be ok. No, cape honeysuckle (Tecoma capensis) is not poisonous to pets. Hope you can help Because cats dont have hands that can manipulate objects like we do, they default to using their mouths, which gives some toxins immediate access to their body, adds Kelley. Common names: Crane flower, bird's tongue flower Toxic to: Cats, dogs, horses Symptoms: mild nausea, vomiting, drowsiness Note: Poisoning is caused mainly by the . Scientists believe this is genetic and may have to do with the place of origin of a cat's breed and whether catnip grew there. Peppermint is VERY toxic to cats and so is Lemongrass! Bitter almond (Peumus boldus) , a board-certified veterinary toxicologist at the New York State Animal Health Diagnostic Center in Ithaca, New York. Some of the compounds in hydrangeas can theoretically break down to cyanide gas in the stomach, I would definitely advise against letting your cat eat these, says Bischoff. My cats are all cuddlers and like being around my head. Sago Palm - While the seeds and nuts of this plant are most poisonous, the entire plant is toxic. For example, a relative of the plant mentioned above is yellow trumpet bush (Tecoma stans.) All Rights Reserved 2022. If you have a domestic pet cat and you want to use essential oils, there are several things to keep in mind to ensure the safety of your pet. Ylang Ylang event : evt, Valerian is a plant who finds its use in assisting people to sleep better and be less anxious. In Southern California, where I live, many birds frequent Cape honeysuckle and hummingbirds are attracted to the flowers for their nectar, without any harm to the hummingbirds. Early symptoms of lily poisoning include excessive salivation or drooling, vomiting, and lethargy, which can range from mild to noticeable, says Kelley. Your first resource even states this, as do numerous other places. I use an insect spray that is natural and has eucalyptus oils. Pyrethrin is a natural insecticide that can cause some skin irritation, increased salivation, nausea, and vomiting in cats, both because of the effects on nerves and because they have a very bitter flavor.. The raw leaves and stems of these plants can cause aggressive lower gastrointestinal pain if eaten by your cat. I had understood that using a diffuser with essential oils is always bad for cats because the oil settles on to their fur and when they groom themselves it gets into their digestive system and gums up the works which can kill them slowly over time. Conscientious pet owners want to know what kinds of plants are poisonous in order to keep their beloved pets safe and healthy. The dwarf bonsai includes a chemical called cycasin, which is the leading active toxic agent. listeners: [], Branches can be pruned and shaped to form a lush accent shrub or hedge. The woody part of the plant is what is made into toys and sprays for cats. Each [cat] is different and some aggressively seek out certain smells when available, while others seem not to care or respond.. These yellow-petaled flowers with a brown interior disc are cheerful and yield edible seeds. One of early springs typical flowers, tulips actually belong to the lily family (Liliaceae). Not every poisonous plant is deadly, as many have various levels of toxicity causing different effects. While it's not a good idea to let your dog eat plants out in the garden, you can always try growing your own vegetables for them . Since you may not know what type of honeysuckle you have, it's best to avoid them when your dog is in tow. family, a group of fragrant, flowering plants that most often present in various shades of pink. Keep in mind that even non-poisonous flowers for cats can cause some gastric upset. Description. All Rights Reserved. on: function(evt, cb) { It's a tricky place for a parent! They are mildly toxic, and don't usually cause more than mild nausea and stomach irritation in humans. If a plant is known to be . So if your dog likes to stick his nose in the shrubs (I had one of those), steer clear of the cape honeysuckles. Experts warn us that there are many sorts of honeysuckle. It is very toxic and it can lead to lower gastrointestinal problems. Even though there are cats who react to both plants honeysuckle and catnip, there are cats, usually the ones who are indifferent to catnip, who like Valerian. Marijuana, on the other hand, comes from a plant called Cannabis sativa.The chemical in Cannabis that produces the altered states of consciousness humans enjoy is called . Luckily, many cats that don't respond to catnip do show a similar response to honeysuckle. Cats may show signs through changing their habits in sleeping and eating; behavior changes such as tiredness, and lack of energy; digestive problems such as constipation, diarrhea or vomiting; and light-headedness. Learn which plants thrive in your Hardiness Zone with our new interactive map! is the common name of several species of plants that are poisonous to livestock. Is Cape honeysuckle toxic to cats? It can invade fence rows, open woodlands, roadsides, and thickets. Our own cats have lived with the honeysuckle cuttings in our storage facility for 8 years - rubbing, playing, chewing, napping contentedly - with absolutely no side effects. Dimorphotheca . While there seems to be less of a tendency for cats to become aggressive from the effects of honeysuckle than from catnip, it's good to use caution until you see how your cat reacts. Holly: Varieties include American holly, English holly, Japanese holly,. Thanks One concern is the use of Eucaluptys as I just read on another site that it was ok to use on cats. Theres no denying the beauty of freshly-cut tulips or a garden bed of lilies, but flowers like these can make cats sick or even be fatal. However, the true honeysuckle is considered highly toxic for dogs, birds, and cats. You can find it by going to the index and selecting Feeding Time then read the sticky at the top of the forum regarding treats for chickens feedback. Some claim that among 68 types of honeysuckle, only one attracts cats. If in doubt about any plant, it pays to run it past your veterinarian, a garden expert, the ASPCA Animal Poison Control Center, or the Pet Poison Helpline (855-764-7661). If at all possible, have a friend or family member call your vet while you deal with poison control to get the ball rolling. As I'm getting started with essential oils for more natural well-being in my life, I hope to provide you with many valuable resources, tips, tricks and reviews to help you do the same. Notice: Ask-a-Vet is an affiliated service for those who wish to speak with a veterinary professional about their pet's specific condition. I still read articles about this because people just dont know. Many of these blossoms are edible and can make a colorful and tasty addition to a salad. Are dwarf bonsai trees poisonous to cats. However, some humans or animals may experience severe reactions to honeysuckle plants, and in these cases respiratory failure, convulsions or coma is possible. Precisely what I was searching for, thanks for putting up this article! I spray the air with this to prevent insects. What about Human consumption? A variety of ways you maybe already are incorporating essential oils into your daily life, include herbal remedies, aromatherapy, liquid potpourri, body care products, and natural home cleaning products. One caveat, however, is the thorny stem of roses, which can cause pain or discomfort to an unsuspecting cat. Those cats have the same reactions as other cats to catnip. Read my full disclosure policy here. There have been no reports of serious side effects in cats from honeysuckle toys and spray. Yes, Dwarf Crepe Myrtle Bonsai trees are harmful to cats. The toxic ingredient in lantana is a triterpenoid, which is extremely toxic and dangerous to your dog as well as other animals and children, if consumed. One of springs most aromatic flowers, the common lilac (Syringa vulgaris) is a violet-colored shrub that can also come in shades of lavender, burgundy, white, yellow, and blue. Disclaimer: This website is not intended to replace professional consultation, diagnosis, or treatment by a licensed veterinarian. please tell me if BAY LAUREL oil is bad for cats endstream endobj startxref Cape honeysuckle. All parts of the plant, including the pollen, should be avoided as they can cause kidney failure in cats. But they also come in other colors, including yellow, red, and green. This Jasmine is toxic to cats, it can be lethal within hours of ingestion. Cats are the only animal that do NOT produce a liver enzyme glucuronyl transferase that is responsible for breaking down, metabolizing and eliminating these toxic compounds found in many essential oils from a cats system. Most orchids are considered safe for cats. The more toxic of these species are grassy death camas (Z. gramineus), meadow death camas (Z. venenosus), foothill death camas (Z. paniculatus), and Nuttall's death camas (Z. nuttallii). Always research the flower youre planning to purchase, whether its an indoor or outdoor plant, recommends Dr. Tina Wismer, senior director at, and a board-certified veterinary toxicologist. , an emergency veterinarian at BluePearl Specialty and Emergency Hospital in Clearwater, Florida. Hyacinth Hydrangea Iris Lilies (all Lilium species, such as Easter Lilies) Lily of the Valley Morning Glory Oleander Philodendron If in doubt about any plant, it pays to run it past your veterinarian, a garden expert, the ASPCA Animal Poison Control Center, or the Pet Poison Helpline (855-764-7661). She currently splits her time between part-time clinical practice and freelance writing, as well as serving on her county Board of Health. Why Do Cats Like Catnip? Here are some Kitty Kottage facts about Honeysuckle: Kitty Kottage uses wood from the lonicera species of honeysuckle. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Hello and welcome to Essential Oil Haven! For example, while the common lilac plant (Syringa vulgaris) is not considered poisonous to cats, the Persian lilac of the Melia genus is. Thyme Make sure you read our full guide to poisonous plants in dogs and cats. To be safe, only buy honeysuckle products from trusted vendors and only give your cat honeysuckle that is inside of a sturdy toy. Special consideration do go to using essential oils on your own body by way of DIY essential oil body care products, lotions or creams; since your pet may have physical contact with you and potentially lick the oil contents off your skin. According to the University of Georgia, trumpet honeysuckle (Lonicera sempervirens), which is hardy to zones 3 through 9, and native to the Southeastern United States, is also mildly toxic, as are some bush varieties. To learn more about cats and honeysuckle, the article Honeysuckle: When Catnip Doesnt Create a Crazy Cat gives us detailed description. The pulse may be either slowed or accelerated. Scanning through testimonies and research studies, science elaborates on the possible effects of several essential oils to the feline species. } Which honeysuckle is poisonous? With more than 25,000 species of orchids however, its best to check with a professional. If your kitty spends any time outdoors, keep him away from any flowers that are toxic to cats. Practitioners of herbal medicine often turn to goldenrod to treat a wide variation of kidney ailments, from bacterial infections and kidney stones. Both leaves and flowers are non-toxic to cats and dogs. "It has come to our attention that there is a concern with the safety of using honeysuckle in toys for cats. I think essential oils are great but not at the cost of our pets. Poison Ivy and other species of Ivy, can be highly . It grows in USDA plant hardiness zones 3 through 7 and blooms from June to July. Many people who have cats enjoy watching them respond to catnip or catnip-stuffed toys. If Cape honeysuckle (Tecoma capensis) is the plant you mean, then I can answer that Cape honeysuckle (Tecoma capensis) is not poisonous and does not harm birds nesting in it or eating it. This doesnt mean you need to completely give up flowers. I didnt know essential oils could be fatal for cats until after we lost her. I still accidentally see the symptoms fatal for cats from essential oils and it breaks my heart because she had each one and I wonder what other symptoms she had that arent listed simply because we dont know. If you dog have eated it then call nearest pet center for help. There is a charge for the service if you choose to connect to a veterinarian. Introduction Non-toxic plants Table 1: Non-toxic plants by common name Table 2: Non-toxic plants by Latin or scientific name Toxic plants How to use this toxic plant list Toxic plant rating guide What to do for a plant poisoning Table . Their yellow flowers bloom in June, and these plants are also easy to care for. Use just a drop of this diluted oil and apply to your cat from ear to tail. In a worst-case scenario, a cat who ingests orchids might experience mild vomiting and diarrhea, says Bischoff. Honeysuckle is a plant that grows in hundreds of varieties around the world. Japanese yew (Taxus spp.) 2015 Kitty Kottage. Did you know? Does this cat food have toxic elements in it? The Garden Factory Inc. Plants Toxic to Dogs & Cats Common Name Other Common Name Botanical Name Toxic to Toxic to What's Toxic? Showy, small, red-orange, trumpet-shaped flowers appear in clusters. However, some species of honeysuckle and the berries from honeysuckle plants may be toxic to cats. If so, take a bucket of soapy water and drop them into it to drown. Honeysuckle berries and possibly flowers and leaves are toxic to cats and should not be given to them. The common honeysuckle vine climbs fences, shrubs, trees and posts. Then, you will be transferred to a human. This article is a complete guide for cat owners to understand how to ensure the safety of their pets because essential oils are becoming an invaluable commodity in our homes. If the flowers are white, they change to a delightful golden yellow as they age. If a plant is known to be hazardous to Honeysuckles (Lonicera spp.) So far as I know Cape honeysuckle (Tecoma capensis) has never been reported as being responsible for making a dog sick. Thanks for this awesome article. Here are some honeysuckle toys for cats that we love: What Does Catnip Do to Cats? There is no such plant as Cape Cod honeysuckle. Perhaps you are referring to a subtropical plant called Cape honeysuckle (Tecoma capensis.) True lilies (Lilium) and daylilies (Hemerocalis) are so incredibly toxic to cats that they arent ever allowed in my house, says Bischoff. These effects are usually mild and occur only when large quantities are ingested. Oh my god. While the entire plant of the lantana is poisonous, the berries are the most toxic. The Lonicera periclymenum - L. variety of honeysuckle is, however, listed as. While honeysuckle is not considered highly toxic, if you or a pet has ingested any part of poisonous varieties in large enough amounts, serious illness can occur. Signs: Effects are usually seen several hours after ingestion and last over 24 hours. The chemical, nepetalactone, which creates the response in cats to catnip, doesn't work until the cat is in puberty. Our content and products are for informational purposes only. Free range chickens will peck at anything that you have planted. Dermatitis is the 4th class toxicity present in plants. I killed 3 of my cats using peppermint oil!!!!! Although they look pretty, they can be poisonous to cats. Animals can also eat yellow trumpet bush (Tecoma stans) and it does not harm them. Do not use the plant lists on this site to learn about safe or toxic plants for animals. Can I still use the citrus oils in my Ultrasonic diffuser? I had read that all essential oils could cause liver damage to cats so I stopped diffusing them around my house. The most dangerous plant is the lily - all parts are toxic. If you suspect your cat has been exposed to a toxic plant (or are in doubt), contact your veterinarian, ASPCA Poison Control (888-426-4435), or the Pet Poison Helpline (855-764-7661). Green tomatoes and potatoes contain poisonous alkaloid called Glycoalkaloid Solanine. Exposure can lead to serious liver damage, liver failure, seizures, or even death for cats. Eating even a few leaves can cause serious issues, including vomiting, diarrhea, drooling, paralysis, shock, coma, and death. Toxicity has been reported due to exposure to certain home cleaning products, as well as direct exposure to essential oils.. This plant is poisonous, yet bees are attracted to it. Calamus essential oil (Acorus calamus) The ASPCAs list of plants toxic to dogs is extensive, and it also shows some that are safe. They have discovered that cats who are indifferent to catmint are sensitive to honeysuckle. They typically bloom from fall to spring. Weakness, pale gums, bad breath, black or tarry stools and excessive urination or thirst (or an absence of either) could also be indicative of pet poisoning. Some of the better-known toxic plants include gardenias, aloe, hyacinth and bird of paradise. I thought peppermint was also toxic to cats? It is smart to keep horses away from lilac bushes, as the uncommon Persian lilac variety is poisonous to a horse. The symptoms of cat poisoning through an essential oil depends on the kind of oil administered around the cat. In a worst-case scenario, a cat who ingests orchids might experience mild vomiting and diarrhea, says Bischoff. According to Missouri Botanical Garden, the common bush honeysuckle (Diervilla lonicera) has dense branches and averages 3 feet tall and 4 feet wide. This plant is very toxic. Most cats are very wary of eating anything unusual, which means plant poisoning cases taken to the vets are rare. As long as your cat has a way to escape the room, I wouldnt worry about him or her in the same room. especially cats and dogs, also frequently ingest plants. Dont use citrus, or anything that is on the no list. However, Rover claims that scarlet and coral honeysuckle (Lonicera sempervirens) is toxic to dogs. Clove (Syzgium aromaticum) Question from Sandy: 54 0 obj <>stream Is mother-in-law tongue poisonous to cats? Lilies are not toxic to dogs, but they are toxic to cats. Contact your veterinarian immediately if your cat eats this plant. About 30 to 40 leaves can be deadly to a horse. I have read such conflicting information regarding essential oil in cats. And what a fun effect it can be! Note: Cape Jasmine and Paraguayan Jasmine ARE TOXIC to dogs. Also more has been mentioned that leaves, fruits, stems, seeds, bark, flowers are some other toxic parts. The blooms on this flowering plant are distinctive, shaped like a trumpet and colored a bright, bold, and beautiful orange. Whether cats respond to honeysuckle or not does not seem to depend on the same genetic code that determines whether cats respond to catnip. Wintergreen, peppermint, spearmint, mint (Mentha sp.) Ingesting honeysuckle wood or flowers may also cause gastrointestinal upset and the wood can cause choking or damage to the delicate tissues of the mouth. Tatarian honeysuckle (Lonicera tatarica) is a multi-stemmed, upright, woody perennial bush. window.mc4wp.listeners.push( Indeed, birds eat it in Africa and some birds there live on its nectar. Mums are some of autumns most widely-grown flowers, presenting in deep orange, burgundy, purple, and yellow. I was hoping for an answer to this question but didnt find it. Effective as antiseptic, disinfectant, and anti-inflammatory. Orange oils (Citrus sinensis) Initially, a bot will ask questions to determine the general nature of your concern. Cape honeysuckle has orange or yellow tubelike flowers and is a rangy shrub or climber. You list several, but Im wondering about Neroli. Looking to buy high quality essential oils? Thank you for your article Emma. Need to know if cape cod honeysuckle is toxic or not-want to put in exotic bird cages for them to perch and/or eat on(parrots-amazons,macaws,cockatoos)do not see it listed on toxic sheets for birds,tortoises ectc and can not find the answer on internet sources that I have tried. There are over 180 species of honeysuckle shrubs and vines, though only one species, Lonicera tatarica or tatarian honeysuckle, seems to have an effect on cats. Fact Sheet: Death Camas. Experts say roses have not been associated with poisoning in cats. Its flowers are brighter, though, with a sulfur-yellow color. I still think they would be fine, but I would have a concern if the chickens foraged on the leaves frequently. While honeysuckle is not considered highly toxic, if you or a pet has ingested any part of poisonous varieties in large enough amounts, serious illness can occur. When reviewing any list of non-poisonous or poisonous plants for cats, keep in mind that some names can be misleading. Without the comforting presence of the pack or of human companionship, they can become psychotic and may eat garden plants. forms: { We have personally observed dozens of cats scratching on these honeysuckle shrubs even when the berries are present. Is Cape honeysuckle Bonsai poisonous to dogs? Veterinarians recommend preventing cats access to the following flowers. However, these lists do not cite which species of honeysuckle it is that is harmful to cats. Im wondering if this method is safe for my cats or should I only choose since from the good oil list? Related - Find out more about using honeysuckle with your cats here, they'll love it. But, generally, the following flowers are considered safe for cats: *These lists are not all-inclusive, so if youre unsure about any plant, its safest to check with a professional. At the bottom of the treats page are some links listing toxic plants. CAT ATTRACTANT CHEMICALS. Unhappy and lonely adult dogs may have a chewing problem and develop a habit of chewing on plants as a protest or simply out of boredom and loneliness. Ask-a-Vet is not manned by the staff or owners of CatHealth.com, and the advice given should not delay or replace a visit to your veterinarian. Cats might go for certain plants because they enjoy the mouth feel, says Dr. Cathy Lund, a veterinarian with City Kitty Veterinary Care for Cats in Providence, Rhode Island. Better to be safe than sorry. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. hbbd``b`$s`$@Rf a$d;@D2`vXQ hW$p@8HdG? b``3@ >M It can cause more severe gastrointestinal distress, and also muscle weakness, tremors, and seizures if ingested, says Bischoff. Honeysuckle plants don't affect all wildlife. Lantana. Can you recommend an essential oil for my cat with kidney disease. Gardenia (cape jasmine) Gaultheria Geranium* (cranesbill, pelargonium) Giant marsh marigold (caltha polypetala) Gladioli bulb (sword lily) Gypsophila (baby's breath) Hedera* (ivy) Helenium* Heliotrope (boraginaceae) Helleborus* (Christmas rose, Easter rose, ranunculaceae) Horse chestnut (aesculus hippocastanum) * - bulb Hydrangea* We see regular cases of exposure and intoxication with indoor and outdoor cats, says. While most honeysuckle species are not poisonous, some varieties contain glycosides in the stems or vines, and carotenoids in the berries. And, every pet and household is different. Is too much carotene bad for you? Lilies - Plants of the lily variety are very poisonous to cats. Legit articles that veterinarians post have lists that contradict each other.