
Most of us coexist peacefully with both domesticated and wild plants when at home and at work. Nevertheless, a small number of these plants may be dangerous to humans and our pets.
What threats are plants?
Most cats are conscientious animals that carefully monitor their diets. Consequently, cat poisoning is not very prevalent. The plants on the list below should never be planted in a house with cats. Another factor is boredom. When a cat is confined to a run or spends all of its time indoors, dangerous plants need to be removed from the immediate area. Cats often have other things on their attention besides examining new plants when they have unfettered access to the outside world. Even older cats that are permitted to wander freely, though, could unintentionally eat seeds or needles that got tangled up in their fur during grooming.
Any plant, including grass, can aggravate a cat’s digestive system and make it throw up. But when given the opportunity, cats like to nibble on grass. They might start concentrating on less appealing houseplants when you’re not present. Particularly dangerous flowers include lilies and Dieffenbachia (Dumb Cane), which are widely used in bouquets and floral arrangements.

Preventative actions
Get rid of any harmful houseplants to prevent exposure. This is especially important for indoor cats and kittens. The majority of dangerous plants are most likely to be consumed by young, inquisitive cats and kittens.
Outside, the situation is more difficult. Because cats that wander freely have access to many gardens, it will be hard to prevent every potential interaction with potentially harmful plants. Nevertheless, you can get rid of the riskiest plants from your garden and keep a record of any possibly dangerous plants in your neighbors’ gardens. Include both Latin and well-known names. Your veterinarian might find this information helpful if poisoning is suspected.
You can also ensure the safety of any new additions to the landscape. Most garden centers and nurseries label plants that can be dangerous or induce allergic reactions, and the Horticultural Trade Association has a code of ethics for its members. Plants are divided into three categories:
- A is toxic and B is hazardous if ingested.
- C — Unfavorable if consumed
- Poison ivy is a category A plant, so it’s unlikely to be for sale. Utilize no category B plants.
After gardening, never leave hedge clippings or uprooted plants close to animals. Their novelty value could pique chewing interest. The sap from broken stems can irritate skin and is poisonous, which can lead to skin issues. The most hazardous parts of some plants may be their roots, rhizomes, and bulbs.

Has poison been consumed by my cat?
You should contact a veterinarian right away if your cat suddenly faints, vomits frequently, has severe diarrhea, or exhibits signs of severe irritation (redness, swelling, blistering, or rawness of the skin of the mouth or throat). Medical treatment should be sought if a cat has been lethargic and without eating for a day or longer since they may have ingested something toxic. If you see your cat eating anything you think is deadly, don’t try to make it vomit. Bring the cat and a sample of the plant, or even the plant’s label, to the vet. Finding a treatment or hazardous antidote will be simpler for the veterinarian as a result. The meals and any symptoms should be noted. It could take several days for the unwanted item’s effects to become apparent after consumption.
Skin consequences
Plants cause skin discomfort in gardeners more frequently than poisoning does. By coming into contact with the leaves, stems, or sap of some plants, you may experience itching and burning. Cats’ lips and gums could become irritated or blistered by these plants. Sometimes gingivitis is incorrectly labeled as this. Sneezing and eye problems may also result from contact with these plants. Some edible plants, such as tomato, strawberry, rhubarb, parsnips, carrot, celery, marrow, and cucumbers, as well as their leaves, may cause this in the cat. Geranium and primula leaves can also irritate the skin. Many plants that are poisonous when consumed can irritate the skin when touched with their leaves or secretions. An illustration of them can be found in the list below.

Dangerous Plants
There is a fairly long list of plants that, if consumed by your cat, could be harmful or dangerous. Contact with some of the plants described on this list may be sufficient to irritate the skin (marked*). Plants’ fruit or seeds are frequently the ones that could be harmful. Many of us are already familiar with plants like Deadly Nightshade that produce berries that are exceedingly poisonous. Only a small quantity of them must be consumed in order to be fatal. Daffodils and other plants on the list could surprise you. However, in this instance, swallowing the bulb could be dangerous.
There is no need to be alarmed because the list contains a number of extremely widespread plants. Since the majority of these potentially harmful plants have disagreeable tastes, it is unlikely that they will be taken in amounts that could cause long-term harm. Your cat is less likely to chew woody landscape plants than delicate houseplants, which pose the biggest risk.
Houseplants
- sAphelandra Amaryllis
- Azalea and castor oil plant (also see Ricinus)
- Christmas Cherry (also see Solanum)
- (Also see Holly) Chrysanthemum (also see Ilex)
- Hypoesthesia Phyllostachya
- Violaceous Hyacinth (also see Hedera)
- Kalanchoe and mistletoe (also see Viscum)
- The oleander Nerium (also see Nerium oleander)
- Ornithogalum dendron)
- Codiaeum of Croton (also see Codiaeum)
- Cyclamen
- Devil’s Ivy (also see Epipremnum aureum)
- Dieffenbachia duncei (also see Dieffenbachia)
- (Also see Caladium, Alocasia) Aureum epipremnum, or elephant’s ear
- Ferns Senecio, “Star of Bethlehem” (also see Ornithogalum)
- Umbellatum, the umbrella plant (also see Schefflera)
- Vegetable Zebra (also see Aphelandra)

Garden plants
Abrus precatorius Aconitum* Actaea Aesculus Alstroemeria* Anagallis Bird of Paradise (also see Strelitzia) Black-eyed Susan (also see Thunbergia) Bloodroot (also see Sanguinaria) Anemone Angel’s Trumpets (also see Brugmansia) Angel Wings (also see Caladium) Apricot (also see Prunus armeniaca) Aquilegia Arisaema Arum Astragalus Atropa Avocado (also see Persea americana) Azalea (also see Rhododendron) Baneberry (also see Actaea) Box (also see Buxus) Broom (also see Cytisus) Brugmansia Bird of Paradise (also see Strelitzia) Black-eyed Susan (also see Thunbergia) Bloodroot (also see Sanguinaria) Bryony Buckthorn (also see Rhamnus) Burning Bush (also see Dictamnus) Buttercup (also see Ranunculus) Buxus Caesalpinia Caladium Caltha* Catharanthus Celastrus Cestrum Cherry Laurel (also see Prunus laurocerasus) Chincherinchee (also see Ornithogalum) Chrysanthemum (also see Dendranthema) Clematis Colchicum Columbine (also see Aquilegia) Conium Convallaria majalis Corncockle (also see Agrostemma githago) Cotoneaster Crocus (also see Colchicum) X Cupressocyparis leylandii* Cyclamen Cytisus Daffodil (also see Narcissus) Daphne* Datura* Dendranthema* Dicentra Dictamnus Delonix Delphinium Digitalis Echium* Elder (also see Sambucus) Euonymus Euphorbia* False Acacia (also see Robinia) Ferns Ficus Flax (also see Linum) Four O’Clock (also see Mirabilis jalapa) Foxglove (also see Digitalis) Frangula (also see Rhamnus) Fremontodendron* Galanthus Gaultheria Giant Hog Weed (also see Heracleum mantegazzianum) Gloriosa superba Glory Lily (also see Gloriosa superba) Hedera* Helleborus* Hemlock (also see Conium) Henbane (also see Hyoscyamus) Heracleum mantegazzianum Hippeastrum Holly (also see Ilex) Horse Chestnut (also see Aesculus) Hyacinthus Hydrangea Hyoscyamus Ilex Ipomoea Iris Ivy (also see Hedera) Jasminum Juniperus sabina Lilium Lily of the Valley (also see Convallaria majalis) Linum Lobelia* (except bedding Lobelia) Lords and Ladies (Cuckoo Pint) (also see Arum) Lupinus Kalmia Kalanchoe Laburnum Lantana Larkspur (also see Delphinium) Lathyrus Ligustrum Lycopersicon* Lysichiton Madagascar Periwinkle (also see Catharanthus) Marigold (also see Tagetes) Melia Mirabilis jalapa Monks Wood (also see Aconitum) Morning Glory (also see Ipomoea) Narcissus Nerium oleander Nicotiana Nightshade, Deadly (also see Atropa) Nightshade, Woody (also see Solanum) Oak (also see Quercus) Onion (also see Allium) Ornithogalum Oxytropis Paeonia Papaver Parthenocissus Peach (also see Prunus persica) Peony (also see Paeonia) Pernettya Persea americana Philodendron Physalis Phytolacca Pokeweed (also see Phytolacca) Polygonatum Poppy (also see Papaver) Primula obconica* Privet (also see Ligustrum) Prunus armeniaca Prunus laurocerasus Prunus persica Quercus Ranunculus Rhamnus (including R frangula) Rhododendron Rhus* Ricinus Robinia Rosary Pea (also see Abrus precatorius) Rubber Plant (also see Ficus) Rudbeckia Rue (also see Ruta) Ruta Sambucus Sanguinaria Schefflera* Scilla Skunk Cabbage (also see Lysichiton) Snowdrop (also see Galanthus) Solandra Solanum Solomon’s Seal (also seePolygonatum) Spindle Tree (also see Euonymus) Spurge (also see Euphorbia) Strelitzia Sumach (also see Rhus) Sweet Pea (also see Lathyrus) Tagetes Tanacetum Taxus Tetradymia Thornapple (also see Datura) Thuja* Thunbergia Tobacco (also see Nicotiana) Tomato (also see Lycopersicon) Tulipa* Veratrum Viscum Wisteria Yew (also see Taxus) |
*Skin irritation from contact with these plants may be sufficient.
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