Plants To Avoid

This section features a list of plants that may cause harm to dogs and other pets. We have listed below some plants to avoid alphabetically by their common names. We have also given the botanical Latin name of each plant. Also, be aware of potentially toxic houseplants you may have in your home, and keep them well out of reach of your pet.

If you suspect your dog or pet has chewed on or ingested ANY poisonous plant or substance, you should seek veterinary advice immediately. If possible, take a sample of the plant or substance with you to show the vet.


Click on the links below to view plants listed alphabetically by common name.

A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z


  • A
  • Aconite Acontium napellus

  • Adam and Eve Arum maculatum
  • Toxin = Insoluble calcium oxalates
  • Also known as Arum, Lord-and-Ladies, Wake Robin, Starch Root, Bobbins, and the Cuckoo Plant

  • Acorns (Oak Poisoning) Quercus sp.

  • African Wonder Tree (Castor Oil Plant) Ricinus communis
  • Toxin = Ricin (Highly Toxic)
  • All parts are poisonous, especially the seeds

  • Alocasia Alocasia spp.
  • Toxin = Insoluble calcium oxalates
  • Also known as Elephant's Ear

  • Aloe Aloe vera
  • Toxin = Saponins

  • Amaryllis Amaryllis sp.
  • Toxin = Lycorine and others
  • Known by many other names, including: Belladonna lily, Saint Joseph lily, Cape Belladonna, and Naked Lady

  • Ambrosia Mexicana Chenopodium botrys / Ambrosia mexicana
  • Toxin = Sesquiterpene lactones
  • Also known as Jerusalem Oak, and Feather Geranium

  • American Holly Ilex opaca
  • Toxin = saponins
  • Also known as English Holly, European Holly, Oregon Holly, Inkberry,or Winterberry

  • American Mandrake Podophyllum peltatum
  • Toxin = Podopyllin
  • Also known as Mayapple, Indian Apple Root, Umbrella Leaf, Wild Lemon, Hog Apple, Duck's Foot, and Raccoonberry

  • Andromeda Japonica Pieris japonica
  • Toxin = Grayanotoxins
  • Also known as Pieris, or Lily-of-the-Valley Bush

  • Angelica Tree Aralia spinosa
  • Toxin = Araliin
  • Also known as Hercules' Club, Devil's Walking Stick, Prickly Ash, or Prickly Elder

  • Apples Malus sylvestrus / Malus sp.
  • Toxin = Cyanogenic glycosides
  • Like some other tree-fruit species, the stems, leaves and seeds contain cyanide, which is particularly toxic in the process of wilting. Symptoms of cyanide poisoning include brick red mucous membranes, dilated pupils, difficulty breathing, panting, and shock. Whilst many dog owners have fruit trees growing in their gardens without issue, it is worth clearing fallen fruit from the ground, especially if you're dog is likely to scavange apples. Eating a large number of apple pips may cause problems, and fallen fruit often attracts wasps, which may also be a problem if the dog is stung whilst eating fruit.

  • Apricots Prunus armeniaca / Prunus sp.
  • Toxin = Cyanogenic glycosides
  • See 'Apples' above

  • Arrowhead Vine Syngonium podophyllum
  • Toxin = Insoluble calcium oxalates
  • Also known as Nephthytis, Green Gold Naphthysis, African Evergreen, Trileaf Wonder. All part of this plant are poisonous.

  • Arum Arum maculatum
  • Toxin = Insoluble calcium oxalates
  • Also known as Adam and Eve, Lord-and-Ladies, Wake Robin, Starch Root, Bobbins, and the Cuckoo Plant

  • Arum Lily Zantedeschia aethiopica
  • Toxin = Insoluble calcium oxalates
  • Also known as Calla Lily, Pig Lily, White Arum, Trumpet Lily, Florist's Calla,and Garden Calla

  • Asparagus Fern Asparagus densiflorus cv sprengeri / Asparagus setaceus
  • Toxin = Sapogenins
  • Also known as Emerald Feather, Emerald Fern, Sprengeri Fern, Plumosa Fern, Lace Fern, Racemose Asparagus, and Shatavari

  • Australian Nut Macadamia integrifolia
  • Toxin = Unknown
  • Also known as the Macadamia Nut, or Queensland Nut

  • Australian Pine Araucaria heterophylla
  • Toxin = Unknown
  • Also known as the Norfolk Pine, House Pine, and Norfolk Island Pine

  • Autumn Crocus Colchicum autumnale
  • Toxin = colchicine and other alkaloids
  • Also known as Meadow Saffron

  • Avacado Persea americana
  • Toxin = Persin
  • Ingestion causes vomiting and diarrhea in dogs and cats

  • Azalea Azalea sp. / Rhododendron sp.
  • Toxin = Grayantoxin
  • All Azalea and Rhododendron spp are toxic to dogs. All parts of these plants are poisonous if chewed or ingested. Symptoms of poisoning include irritation of the stomach and abdominal pain, incresed heart rate and abnormal heart rhythm, convulsions and coma. May be fatal.

  • B
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  • Baby Doll Ti Plant Cordyline terminalis
  • Toxin = Saponins
  • Also known as Ti-Plant, Good-Luck Plant,and Hawaiian Ti Plant

  • Baby's Breath Gypsophila elegans
  • Toxin = Gyposenin
  • Also known as Maiden's Breath

  • Barbados Aloe Aloe barbadensis
  • Toxin = Anthraquinones, anthracene glycosides (aloin)
  • Also known as the Medicine Plant, or True Aloe

  • Barbados Lily Hippeastrum spp.
  • Toxin = Lycorine and other alkaloids
  • Also known as Amaryllis, Fire Lily, Lily of the Palace, or Ridderstjerne

  • Barbados Pride Caesalpinia pulcherrima
  • Toxin = GI Irritants, Tannins.
  • Also known as Peacock Flower,and Dwarf Poinciana

  • Bead Tree Melia azedarach
  • Toxin = Tetranortriterpenes (meliatoxins)
  • Also known as th China Ball Tree, Paradise Tree, Persian Lilac, White Cedar, Japanese Bead Tree, Texas Umbrella Tree, Pride-of-India,or Chinaberry Tree

  • Begonia Begonia spp.
  • Toxin = Insoluble oxalates

  • Belladona Atropa belladonna

  • Bergamot Citrus Aurantium
  • Toxin = Essential oils and psoralens

  • Bird of Paradise Caesalpinia gilliesii / Poinciana gilliesii
  • Toxin = Uncertain, possibly hydrocyanic acid
  • Also known as Peacock Flower, Barbados Pride, Poinciana,or Pride of Barbados

  • Bird of Paradise Flower Strelitzia reginae
  • Not as toxic as 'Bird of Paradise' (see above), but the fruit and seeds of this plant are poisonous if chewed.

  • Bishop's Weed Ammi majus
  • Toxin = Insoluble calcium oxalates
  • Also known as Greater Ammi, or False Queen Anne's Lace

  • Bitter Root Apocynum androsaemifolium
  • Toxin = Cardenolides
  • Also known as Dogbane Hemp, or Indian Hemp

  • Black Calla Arum palestinum
  • Toxin = insoluble calcium oxalates
  • Also known as Solomon's Lily, Wild Calla, and Wild Arum

  • Black Laurel Leucothoe davisiae
  • Toxin = Grayanotoxins
  • Also known as Dog Hobble, Dog Laurel, Fetter Bush, or Sierra Laurel

  • Black Nightshade Solanum nigrum
  • Toxin = Solanine, saponins, atropine like substances
  • Also known as Nightshade, or Deadly Nightshade

  • Black Walnut Juglans nigra
  • Toxin = Unknown toxin present in mould that grows on nuts

  • Branching Ivy Hedera helix
  • Toxin = Triterpenoid saponins (hederagenin)
  • Also known as English Ivy, Glacier Ivy, Needlepoint Ivy, Sweetheart Ivy, or California Ivy

  • Bread and Butter Plant Coleus ampoinicus
  • Toxin = Essential oils
  • Also known as Indian Borage, Spanish Thyme, Coleus, Maratha, Militini, or East Indian Thyme

  • Brunfelsia Brunfelsia spp.
  • Toxin = Brunfelsamidine
  • Also known as Yesterday, Today, Tomorrow, Kiss-Me-Quick, Lady-of-the-Night, and Fransiscan Rain Tree

  • Buckeye Aesculus spp
  • Toxin = Aesculin (a glycosidic saponin), and other saponins
  • Also known as the Horse Chestnut tree

  • Buckwheat Fagopyrum spp.
  • Toxin = Fagopyrin

  • Burning Bush Euonymus atropurpurea / Euonymus occidentalis
  • Toxin = Alkaloids, Cardenolides
  • Also known as the Wahoo, or Spindle Tree

  • Buttercup Ranunculus sp.
  • Toxin = Protoanemonin
  • Also known as Butter Cress, or Figwort

  • Box Buxus sempervirens

  • C
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  • Caladium Caladium hortulanum
  • Toxin = Insoluble calcium oxalates
  • Also known as Malanga, Elephant's Ears, Stoplight, Seagull, Mother-in-law Plant, Pink Cloud, Texas Wonder, Angel-Wings, Exposition, Candidum, Fancy-leaved Caladium

  • Calamondin Orange Citrus mitis
  • Toxin = Essential oils and psoralens

  • Calla Lily Zantedeschia aethiopica
  • Toxin = Insoluble calcium oxalates
  • Also known as Pig Lily, White Arum, Trumpet Lily, Florist's Calla, Garden Calla, Arum Lily

  • Cape Jasmine Gardenia jasminoides
  • Toxin = Genioposide, Gardenoside
  • Also known as Gardenia

  • Cardboard Palm Zamia furfuracea
  • Toxin = Cycasin
  • Also known as Cycads and zamias

  • Cardinal Flower Lobelia cardinalis
  • Toxin = Lobeline
  • Also known as Lobelia, or Indian Pink

  • Carnation Dianthus caryophyllus
  • Toxin = Unknown irritant
  • Also known as Pinks, Wild Carnation, or Sweet William

  • Castor Bean Plant/Castor Oil Plant Ricinus communis
  • Toxin = Ricin
  • Also known as the Mole Bean Plant or African Wonder Tree

  • Ceriman Monstera deliciosa
  • Toxin = Insoluble calcium oxalates
  • Also known as the Cutleaf Philodendron, Hurricane Plant, Swiss Cheese Plant, or Mexican Breadfruit

  • Chamomile Anthemis nobilis
  • Toxin = Volatile oil; bisabolol, chamazulene, anthemic acid, tannic acid
  • Also known as Manzanilla, Garden Chamomile, Roman Chamomile, True Chamomile, Corn Feverfew, Barnyard Daisy, Ground-apple, or Turkey-weed

  • Charming Dieffenbachia Dieffenbachia amoena
  • Toxin = Insoluble calcium oxalates, proteolytic enzyme

  • Cherry Prunus sp.
  • Toxin = Cyanogenic glycosides found in some species
  • Like some other tree-fruit species, the stems, leaves and seeds contain cyanide, which is particularly toxic in the process of wilting. Symptoms of cyanide poisoning include brick red mucous membranes, dilated pupils, difficulty breathing, panting, and shock. Whilst many dog owners have fruit trees growing in their gardens without issue, it is worth clearing fallen fruit from the ground, especially if you're dog is likely to scavange apples. Eating a large number of apple pips may cause problems, and fallen fruit often attracts wasps, which may also be a problem if the dog is stung whilst eating fruit.

  • Chinaberry Tree Melia azedarach
  • Toxin = Tetranortriterpenes (meliatoxins)
  • Also known as Bead Tree, China Ball Tree, Paradise Tree, Persian Lilac, White Cedar, Japanese Bead Tree, Texas Umbrella Tree, or Pride-of-India

  • Chinese Evergreen Aglaonema modestrum
  • Toxin = Insoluble calcium oxalates

  • Choke Cherry Prunus virginiana
  • Highly Toxic
  • Symptoms include Nausea, abdominal pain, bloody diarrhea, tenesmus, shortness of breath, dehydration and excessive thirst, weakness, muscle twitching, convulsions, coma. May be fatal.

  • Christmas Rose Helleborus niger
  • Toxin = Bufadienolides, glycosides, veratrin and prtoanemonin
  • Also known as Hellebores, Lenten Rose, or Easter Rose

  • Chrysanthemum Chrysanthemum sp.
  • Toxin = Sesquiterpene, lactones, pyrethrins and other potential irritants

  • Clematis Clematis sp.
  • Toxin = Irritant glycoside (Protoanemonin)

  • Climbing Lily Gloriosa superba
  • Toxin = Colchicine related alkaloids
  • Also known as Gloriosa Lily, Glory Lily, or Superb Lily

  • Clivia Lily Clivia sp.
  • Toxin = Lycorine and other alkaloids
  • Also known as Kaffir Lily, Clivies, Caffre Lily, Cape Clivia, or Klivia

  • Coffee Tree Polyscias guilfoylei / Aralia guilfoyei
  • Toxin = Saponin
  • Also known as Wild Coffee, or Geranium-Leaf Aralia

  • Coleus Coleus ampoinicus
  • Toxin = Essential Oils
  • Also known as Indian Borage, Bread and Butter Plant, Spanish Thyme, East Indian Thyme, Stinging Thyme, or Country Boarage

  • Corn Cockle Lychnis githago

  • Corn Plant Dracaena fragrans
  • Toxin = Saponins
  • Also known as the Cornstalk Plant, Dracaena, Dragon Tree, or Ribbon Plant

  • Cow Parsley Heracleum maximum
  • Toxin = Furanocoumarins
  • Also known as Giant Hogweed

  • Cowbane Cicuta species
  • Toxin = Cicutoxin
  • Also known as Water Hemlock, or Poison Parsnip

  • Creeping Charlie Glecoma hederacea
  • Symptoms of poisoning include excessive salivation

  • Crocus Colchicum autumnale
  • Toxin = colchicine and other alkaloids
  • Crocus bulbs in particular are highly toxic

  • Cutleaf Philodendron Monstera deliciosa
  • Toxin = Insoluble calcium oxalates
  • Also known as Hurricane Plant, Swiss Cheese Plant, Ceriman, Mexican Breadfruit, Split-leaf Philodendron, Window Leaf Plant

  • Cycads Cycas sp. / Zamia sp.
  • Toxin = Cycasin, B-methylamino-l-alanine
  • Also knownas the Sago Palm, or Fern Palm

  • Cyclamen Cyclamen sp.
  • Toxin = Terpenoid saponins
  • Also known as Sowbread

  • D
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  • Daffodil Narcissus sp.
  • Toxin = Lycorine and other alkaloids
  • The bulbs are most poisonous, but also the leaves and flowers if ingested.

  • Dahlia Dahlia sp.
  • Toxin = Unknown

  • Daphne Daphne sp.
  • All parts are poisonous. Watch out for berries especially.

  • Deadly Nightshade Solanum sp.
  • Highly Toxic. Toxin = Solanine, saponins, atropine like substances
  • Also known as Nightshade, Black Nightshade, European Bittersweet, or Climbing Nightshade

  • Delphinium Delphinium sp.
  • Toxin = Diterpene alkaloids
  • Also known as Larkspur

  • Desert Azalea / Desert Rose Adenium obesum
  • Toxin = Digitalis like glycosides
  • Also known as the Mock Azalea, Sabi Star, Impala Lily, or Kudu Lily

  • Devil's Ivy Epipremnum aureum
  • Toxin = Insoluble calcium oxalates
  • Also known as Pothos, Golden Pothos, Taro Vine, or Ivy Arum

  • Dieffenbachia Dieffenbachia
  • Toxin = Insoluble calcium oxalates, proteolytic enzyme
  • Also known as Charming Dieffenbachia, Giant Dumb Cane, Tropic Snow, Dumbcane, Exotica, Spotted Dumb Cane, or Exotica Perfection

  • Dock Rumex sp.
  • Toxin = Soluble calcium oxalates
  • Also known as Sorrel

  • Dog Daisy Achillea millefolium
  • Toxin = Achilleine and alkaloids
  • Also known as Dog Fennel

  • Dog Hobble Leucothoe sp.
  • Toxin = Grayanotoxins
  • Also known as Dog Laurel, Fetter Bush, Black Laurel

  • Dogbane Hemp Apocynum
  • Toxin = Cardenolides
  • Also known as Bitterroot, or Indian Hemp

  • Dracaena Dracaena sp.
  • Toxin = Saponins
  • Also known as Corn Plant, Cornstalk Plant, Dragon Tree, or Ribbon Plant

  • E
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  • Elephant Ears Colocasia esculenta / Caladium hortulanum
  • Toxin = Insoluble calcium oxalates
  • Also known as Caladium, Taro, Pai, Ape, Cape, Via, Via sori, or Malanga

  • Emerald Feather Asparagus densiflorus
  • Toxin = Unknown
  • Also known as Emerald Fern, Asparagus, Asparagus fern, Sprengeri fern, Plumosa fern, Lace fern, Racemose asparagus, or Shatavari

  • English Holly Ilex aquifolium
  • Toxin = Saponins
  • Also known as European Holly, Oregon Holly, Inkberry, Winterberry, or American Holly

  • Eucalyptus Eucalyptus sp.
  • Toxin = Essential oils (eucalyptol)

  • European Bittersweet Solanum dulcamara
  • Toxin = Solanine
  • Also known as Climbing Nightshade, or Deadly Nightshade

  • Everlasting Pea Lathyrus latifolius
  • Toxin = Aminoproprionitrite
  • Also known as Sweet Pea, or Perennial Pea

  • Exotica Dieffenbachia amoena
  • Toxin = Insoluble calcium oxalates, proteolytic enzyme
  • Also known as Charming Dieffenbachia, Giant Dumb Cane, Tropic Snow, Dumbcane, Spotted Dumb Cane, Exotica Perfection, or Dieffenbachia

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  • False Queen Anne's Lace Ammi majus
  • Toxin = Insoluble calcium oxalates
  • Also known as Bishop's Weed, or Greater Ammi

  • Feather Geranium Ambrosia mexicana
  • Toxin = Sesquiterpene lactones
  • Also known as Jerusalem Oak

  • Fern Palm Cycas sp.
  • Toxin = Cycasin, B-methylamino-l-alanine
  • Also known as the Sago Palm or Cycads

  • Fetter Bush Leucothoe sp.
  • Toxin = Grayanotoxins
  • Also known as Dog Laurel, Dog Hobble, Black Laurel

  • Ficus Ficus benjamina
  • Toxin = Proteolytic enzyme (ficin), psoralen (ficusin)
  • Also known as Fig, Weeping Fig,or Indian Rubber Plant

  • Fiddle-Leaf Philodendron bipennifolium
  • Toxin = Insoluble calcium oxalates
  • Also known as the Horsehead Philodendron, Cordatum, Heartleaf Philodendron, Panda Plant, Split Leaf Philodendron, Fruit Salad Plant, Red Emerald, Red Princess, or Saddle Leaf

  • Fig Ficus benjamina
  • Toxin = Proteolytic enzyme (ficin), psoralen (ficusin)
  • Also known as Ficus, Weeping Fig,or Indian Rubber Plant

  • Figwort Ranunculus sp.
  • Toxin = Protoanemonin
  • Also known as Butter Cress, or Buttercup

  • Fire Lily Hippeastrum sp.
  • Toxin = Lycorine and other alkaloids
  • Also known as Amaryllis, Barbados Lily, Lily of the Palace, or Ridderstjerne

  • Flag Iris sp.
  • Toxin = Pentacylic terpenoids (zeorin, missourin and missouriensin)
  • Also known as Iris, Snake Lily, Water Flag

  • Flamingo Flower/ Flamingo Lilly Anthurium scherzeranum
  • Toxin = Insoluble calcium oxalates
  • Also known as Tail Flower, Oilcloth Flower, Pigtail Plant, or Painter's Pallet

  • Florida Beauty Dracaena surculosa
  • Toxin = Agavaceae
  • Also known as Gold Dust Dracaena, or Spotted Dracaena

  • Foxglove Digitalis
  • Highly toxic. Toxin = Cardiac glycosides
  • Widely recognised as the most universally toxic plant. All parts are poisonous.

  • Franciscan Rain Tree Brunfelsia species
  • Toxin = Brunfelsamidine
  • Also known as Yesterday-Today-Tomorrow, Lady-of-the-Night, Morning-Noon-and-Night, or Kiss-Me-Quick

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  • Gardenia Gardenia jasminoides
  • Toxin = Genioposide, gardenoside
  • Also known as Cape Jasmine.

  • Garlic Allium sativum
  • Toxin = N-propyl disulfide
  • May be beneficial to the health of dogs in small amounts, but like all Alliums, is toxic in larger quantities

  • Geranium Pelargonium sp.
  • Toxin = Geraniol, linalool

  • Giant Hogweed Heracleum maximum
  • Toxin = Furanocoumarins
  • Also known as Cow Parsley

  • Gladiola Gladiolus sp.
  • Toxin = Unknown

  • Good Luck Plant Oxalis sp.
  • Toxin = Soluble calcium oxylates
  • Also known as Shamrock Plant, or Sorrel

  • Grapes
  • Toxin = Unknown

  • Grass Palm Cordyline australis
  • Toxin = Saponins
  • Also known as Giant Dracaena, or Palm Lily

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  • Heartleaf Philodendron Philodendron bipennifolium
  • Toxin = Insoluble calcium oxalates
  • Also known as Horsehead Philodendron, Cordatum, Fiddle-Leaf, Panda Plant, Split Leaf Philodendron, Fruit Salad Plant, Red Emerald, Red Princess, or Saddle Leaf

  • Heavenly Bamboo Nandina domestica
  • Toxin = Cyanogenic glycosides
  • Also known as Sacred Bamboo, or Nandina

  • Heliotrope Heliotropium sp.
  • Toxin = Pyrrolizidine alkaloids

  • Hellebores Helleborus niger
  • Toxin = Bufadienolides, glycosides, veratrin and prtoanemonin
  • Also known as the Christmas Rose, or Easter Rose

  • Hemlock (water hemlock) Conium maculatum
  • Toxin =
  • Highly Toxic All parts are poisonous, especially the root and stalk. Symptoms include dilation of the pupils, foaming at the mouth, muscle spasms, restlessness, convulsions, and in some cases death within 15 min to 2 hours.

  • Hercules' Club Aralia spinosa
  • Toxin = Araliin
  • Also known as Angelica Tree, Devil's Walking Stick, Prickly Ash, or Prickly Elder

  • Hibiscus Hibiscus syriacus
  • Toxin = Unknown
  • Also known as Rose of Sharon, or Rose of China

  • Holly Ilex opaca
  • Toxin = saponins
  • Also known as English Holly, European Holly, Oregon Holly, Inkberry, Winterberry, or American Holly

  • Hops Humulus lupulus
  • Toxin = Unknown

  • Horse Chestnut Aesculus sp.
  • Toxin = Aesculin (a glycosidic saponin), other saponins
  • Also known as 'Buckeye'

  • Hosta Hosta plataginea
  • Toxin = Saponins
  • Also known as Plantain Lily, or Funkia

  • Hurricane Plant Monstera deliciosa
  • Toxin = Insoluble calcium oxalates
  • Also known as Cutleaf Philodendron, Swiss Cheese Plant, Ceriman, or Mexican Breadfruit

  • Hyacinth Hyacinth orientalis
  • Toxin = Narcissus like alkaloids
  • All parts of this plant are poisonous

  • Hydrangea Hydrangea sp.
  • Toxin = Cyanogenic glycoside
  • Also known as Hortensia, Hills of Snow, or Seven Bark. The leaves and buds of this plant are poisonous, with ingestion resulting in irritation and inflammation of the digestive tract, diarrhea, and bloody stools.

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  • Indian Rubber Plant Ficus benjamina
  • Toxin = Proteolytic enzyme (ficin), psoralen (ficusin)
  • Also known as Fig, Weeping Fig,or Ficus

  • Inkberry (Pokeweed) Ilex opaca
  • Toxin = Saponins
  • Also known as English Holly, European Holly, Oregon Holly, American Holly, Winterberry

  • Iris Iris sp.
  • Toxin = Pentacylic terpenoids (zeorin, missourin and missouriensin)
  • Also known as Flag, Snake Lily, Water Flag

  • Ivy Hedera helix
  • Toxin = Triterpenoid saponins (hederagenin)
  • Also known as English Ivy, Branching Ivy, Glacier Ivy, Needlepoint Ivy, Sweetheart Ivy, or California Ivy. All parts are poisonous. Dogs may chew on stems which often lie low to the ground. Symptoms of poisoning include stomach irritation, breathing difficulties, eventual coma and death.

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  • Jack-in-the-pulpit Arisaema triphyllum
  • Toxin = Insoluble calcium oxalates
  • Also known as Three-leaved indian turnip, Devil's dear, Wake robin, Starch wort, Wild turnip, Dragon root, Bog onion, Pepper turnip, Brown dragon, or Memory root

  • Jade Plant Crassula argentea
  • Toxin = Unknown
  • Also known as Baby Jade, Dwarf rubber plant, Jade tree, Chinese rubber plant, or Japanese rubber plant

  • Japanese Yew Taxus sp.
  • Toxin = Taxine A and B, Volatile oil
  • Also known as English Yew, Western Yew, Pacific Yew, Anglo-Japanese Yew

  • Jerusalem Cherry Solanum pseudocapsicum
  • Toxin = Solanine
  • Also known as Natal cherry, or Winter cherry.

  • Jerusalem Oak Ambrosia mexicana
  • Toxin = Sesquiterpene lactones

  • Johnsongrass Sorghum halepense
  • Highly Toxic The leaves and stems of this plant are poisonous, especially so in young plants. Ingestion may lead to breathing difficulties, severe anxiety, convulsions, coma, and death.

  • Jimson Weed Datura stramonium
  • Highly Toxic All parts of this plant are poisonous, and may cause increased heart rate, rapid breathing, dilation of the pupils, restlessness, nervousness, twitching, frequent urination, diarrhea, depression, convulsions, coma, and death.

  • Jonquil Narcissus jonquilla
  • Toxin = Lycorine and other alkaloids
  • Also known as Daffodil, Narcissus, or Paper White

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  • Kaffir Lily Clivia sp.
  • Toxin = Lycorine and other alkaloids
  • Also known as Clivia Lily, Clivies, Caffre Lily, Cape Clivia, or Klivia

  • Kalanchoe Kalanchoe sp.
  • Toxin = Bufodienolides
  • Also known as Mother-In-Law-Plant, Devils Backbone, Chandelier Plant, or Mother of Millions

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  • Laburnum Laburnum sp.
  • Toxin = Cytisine
  • All parts of this plant are poisonous.

  • Lace Fern Asparagus densiflorus cv sprengeri / Asparagus setaceus
  • Toxin = Sapogenins
  • Also known as Emerald Feather, Emerald Fern, Sprengeri Fern, Plumosa Fern, Asparagus Fern, Racemose Asparagus, and Shatavari

  • Lacy Tree Philodendron Philodendron selloum
  • Toxin = Calcium oxalate crystals

  • Lantana Lantana camara
  • Highly Toxic. Toxin = Pentacyclic triterpenoids
  • Also known as Shrub Verbena, Yellow Sage, or Red Sage.The leaves and berries of this plant are poisonous and ingestion may result in sluggishness, weakness and bloody diarrhea. In severe cases, death may occur in 2 to 4 days.

  • Larkspur Delphinium Spp
  • Toxin = Diterpene alkaloids

  • Laurel Kalmia latifolia
  • Toxin = Grayanotoxins
  • Also known as Mountain laurel, Spoonwood, Mountain Ivy, Calico Bush, or Ivy Bush

  • Leek Allium ampeloprasum
  • Toxin = N-propyl disulfide
  • Also known as Elephant Garlic

  • Lilly Lilium sp.
  • Toxin = Unknown

  • Lilly of the Valley Convallaria majalis
  • Toxin = Cardenolides (convallarin, and others)

  • Lobelia Lobelia cardinalis
  • Toxin = Lobeline
  • Also known as Cardinal Flower, or Indian Pink

  • Lord-and-Ladies Arum maculatum
  • Toxin = Insoluble calcium oxalates
  • Also known as Arum, Wake Robin, Adam-and-Eve, Starch Root, Bobbins, or Cuckoo Plant

  • Lyonia Lyonia sp.
  • Highly Toxic. Ingestioon of only a few leaves can cause very serious problems. Toxin = Grayanotoxins
  • Also known as Fetterbush, Staggerbush or Maleberry

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  • Macadamia Nut Macadamia integrifolia
  • Toxin = Unknown

  • Madagascar Dragon Tree Dracaena marginata
  • Toxin = Unknown

  • Maiden's Breath Gypsophila elegans
  • Toxin = Gyposenin
  • Also known as Baby's Breath

  • Malanga Colocasia esculenta
  • Toxin = Insoluble calcium oxalates
  • Also known as Caladium, or Elephant's Ears

  • Maleberry Lyonia sp.
  • Toxin = Grayanotoxins
  • Also known as Staggerbush, or Fetterbush

  • Mandrake Mandragora sp.
  • Toxin = deliriant hallucinogenic tropane alkaloids such as hyoscyamine
  • The roots, foliage and unripe fruit of this plant are poisonous when eaten

  • Marble Queen Scindapsus aureus
  • Toxin = Calcium oxalate crystals
  • Also known as Golden Pothos

  • Melia (Dhrek) Melia azadarach
  • Toxin = Tetranortriterpenes (meliatoxins)
  • The fruits of this tree are poisonous to animals

  • Mistletoe Phoradendron flavescens
  • Toxin = Toxalbumin, pharatoxin viscumin (Lectins, Phoratoxins)
  • In particular the berries.

  • Monkshood Aconitum napellus
  • Highly Toxic. Toxin = Chemical alkaloids; aconitine, mesaconitine, hypaconitine and jesaconitine

  • Morning Glory Ipomoea sp.
  • Highly Toxic. Toxin = Indole alkaloids (Lysergic acid, lysergamide, elymoclavine and chanoclavine)
  • All parts are poisonous, particularly the seeds.

  • Moss Rose Portulaca oleracea
  • Toxin = Soluble calcium oxalates
  • Also known as Wild Portulaca, Rock Moss, Purslane, Pigwee, or Pusley

  • Mother-In-Law's Tongue Sansevieria trifasciata
  • Toxin = Saponins
  • Also known as Snake Plant, Golden Bird's Nest, or Good Luck Plant

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  • Naked Lady Amaryllis belladonna L.
  • Toxin = Lycorine and other alkaloids

  • Nandina Nandina domestica
  • Toxin = Cyanogenic glycosides
  • Also known as Sacred Bamboo, Heavenly Bamboo

  • Narcissus Narcissus sp.
  • Toxin = Lycorine and other alkaloids
  • Also known as Daffodil, Jonquil, or Paper White

  • Nephthytis Syngonium podophyllum
  • Toxin = Insoluble calcium oxalates
  • Also known as Arrow-Head Vine, Green Gold Naphthysis, African Evergreen, or Trileaf Wonder

  • Nicotiana Nicotiana glauca
  • Toxin = Nicotine
  • Also known as Tree Tobacco, Tobacco, or Mustard Tree

  • Nightshade Solanum sp.
  • Toxin = Solanine, saponins, atropine like substances
  • Highly Toxic All parts of this plant are poisonous and ingestion may lead to Hallucinations, severe intestinal disturbances, diarrhea, drowsiness, numbness, dilation of the pupils, trembling, labored breathing, nasal discharge, rapid or weakened pulse, lack of coordination, paralysis or severe shaking of the rear legs and bloat. In some cases, nightshade poisoning can be fatal.

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  • Oak (Acorns) Querucs sp.

  • Oleander Nerium oleander
  • Highly Toxic. Toxin = Cardiac glycosides
  • A common cause of poisoning by plants in dogs.

  • Onions Allium cepa
  • Toxin = N-propyl disulfide

  • Ornamental Pepper Solanum pseudocapsicum
  • Toxin = Solanine
  • Also known as Natal Cherry, Winter Cherry, or Jerusalem Cherry

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  • Painter's Pallet Anthurium scherzeranum
  • Toxin = Insoluble calcium oxalates
  • Also known as Flamingo Plant, Flamingo Lily, Tail Flower, Oilcloth Flower, Pigtail Plant, or Flamingo Flower

  • Palm Lilly Cordyline australis
  • Toxin = Saponins
  • Also known as Giant Dracaena, or Grass palm

  • Peace Lily Spathiphyllum
  • Toxin = Insoluble calcium oxalates

  • Peach Prunus sp.
  • Toxin = Cyanogenic glycosides found in some species
  • Like some other tree-fruit species, the stems, leaves and seeds contain cyanide, which is particularly toxic in the process of wilting. Symptoms of cyanide poisoning include brick red mucous membranes, dilated pupils, difficulty breathing, panting, and shock. Whilst many dog owners have fruit trees growing in their gardens without issue, it is worth clearing fallen fruit from the ground, especially if you're dog is likely to scavange apples. Eating a large number of apple pips may cause problems, and fallen fruit often attracts wasps, which may also be a problem if the dog is stung whilst eating fruit.

  • Pencil Cactus Euphorbia milii
  • Toxin = Irritant Sap (latex)
  • Also known as Crown of Thorns

  • Peony Paeonis officinalis
  • Toxin = Paeonol

  • Periwinkle Vinca rosa
  • Toxin = Vinca Alkaloids
  • Also known as Running Myrtle, or Vinca

  • Philodendron Philodendron sp.
  • Toxin = Calcium oxalate crystals

  • Pieris Pieris japonica
  • Toxin = Grayanotoxins
  • Also known as Lily-of-the-Valley Bush, Andromeda Japonica, Fetterbush

  • Poinciana Poinciana gilliesii
  • Toxin = GI irritants
  • Also known as Peacock Flower, Bird of Paradise, Barbados Pride, Pride of Barbados

  • Pigweed Amaranthus retroflexus
  • Toxin =
  • Highly Toxic All pars of this plant are poisonous, and ingestion may lead to breathing problems, trembling, weakness, coma, and in some case death.

  • Poinsettia Euphorbia pulcherrima
  • Toxin = Irritant Sap (latex)
  • Poisoning is not likely to be serious, but this plant can cause skin, mouth, eye, and stomach irritation.

  • Portulaca Portulaca oleracea
  • Toxin = Soluble calcium oxalates
  • Also known as Wild Portulaca, Rock Moss, Purslane, Pigwee, Pusley, or Moss Rose

  • Potatoes Solanum tuberosum
  • Toxin = glycoalkaloids
  • The tubers of the potato plant (the part we eat) develop toxicity in parts that turn green after exposure to light. Beware of dogs picking up potatoes left lying around vegetable plots or in compot heaps.

  • Pothos Epipremnum aureum
  • Toxin = Insoluble calcium oxalates
  • Also known as Golden Pothos, Devil's Ivy, Taro Vine, or Ivy Arum

  • Prayer Bean/Precatory Bean Abrus precatorius
  • Toxin = Abrin (lectin or a toxalbumin) and abric acid (a glycoside)
  • Also known as Rosary Pea, Buddhist rosary bead, Indian Bead, Indian Licorice, Love Bean, Lucky Bean, Seminole Bead, or Weather Plant

  • Pride-of-India Melia azedarach
  • Toxin = Tetranortriterpenes (meliatoxins)
  • Also known as China Ball Tree, Paradise Tree, Persian Lilac, White Cedar, Japanese Bead Tree, Texas Umbrella Tree, Bead Tree, or Chinaberry Tree. Ripe fruit (berries) most toxic but also flowers, bark and leaves.

  • Privet Ligustrum japonicum
  • Toxin = Terpenoid glycosides
  • Also known as amur, wax-leaf, or common privet

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  • Red Maple Acer rubrum
  • Toxin = Unknown
  • Also knonw as Swamp Maple, Scarlet Maple, Curled Maple, or Soft Maple

  • Red Sage Salvia miltiorrhiza
  • Toxin = Pentacyclic triterpenoids
  • The unripe berries of this plant are poisonous.

  • Rhododendron Rhododendron sp.
  • Toxin = Grayantoxin
  • Also known as Rosebay, or Azalea

  • Rhubarb Rheum rhaponticum
  • Toxin = Soluble calcium oxalates
  • Rhubarb leaves and raw stalks are poisonous if ingested, and may cause staggering, shaking, breathing problems, weakness, diarrhea, increased thirst and urinating, and in some cases death.

  • Ribbon Plant Dracaena sp.
  • Toxin = Saponins
  • Also known as Corn Plant, Cornstalk Plant, Dracaena, or Dragon Tree

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  • Saddle LeafPhilodendron bipennifolium
  • Toxin = Insoluble calcium oxalates
  • Also known as Horsehead Philodendron, Cordatum, Heartleaf Philodendron, Panda Plant, Split Leaf Philodendron, Fruit Salad Plant, Red Emerald, Red Princess, or Fiddle Leaf

  • Sago PalmCycas revoluta / zamia sp.
  • Toxin = Cycasin
  • Also known as Coontie Palm, Cardboard Palm, cycads and zamias

  • Satin Pothos Scindapsus pictus
  • Toxin = Calcium oxalate crystals
  • Also known as Silk Pothos

  • Schefflera Schefflera
  • Toxin = Calcium oxalate crystals
  • Also known as Umbrella Tree, Australian Ivy Palm, Octopus Tree, Starleaf

  • Shamrock Plant Oxalis sp.
  • Toxin = Soluble calcium oxylates
  • Also known as Good Luck Plant or Sorrel

  • Silver Jade Plant/Silver Dollar Plant Crassula arborescens
  • Toxin = Unknown
  • Also Known as Chinese Jade

  • Skunk Cabbage Symplocarpus foetidus
  • Toxin = Insoluble calcium oxalates
  • Also known as Skunk Weed, Polecat Weed, Meadow Cabbage, or Swamp Cabbage

  • Snake Lilly Iris sp.
  • Toxin = Pentacylic terpenoids (zeorin, missourin and missouriensin)
  • Also known as Iris, Flag, or Water Flag

  • Sowbread Cyclamen sp.
  • Toxin = Terpenoid saponins
  • Also known as Cyclamen

  • Spindle Tree Euonymus atropurpurea / Euonymus occidentalis
  • Toxin = Alkaloids, Cardenolides
  • Also known as Wahoo, or Burning Bush

  • Split Leaf Philodendron (Swiss Cheese Plant) Philodendron bipennifolium
  • Toxin = Insoluble calcium oxalates
  • Also known as Horsehead Philodendron, Cordatum, Heartleaf Philodendron, Panda Plant, Fiddle-Leaf, Fruit Salad Plant, Red Emerald, Red Princess, or Saddle Leaf

  • Staggerbush Lyonia sp.
  • Highly Toxic. Ingestion of only a few leaves can cause very serious problems. Toxin = Grayanotoxins
  • Also known as Fetterbush, or Maleberry

  • Sweet Pea Lathyrus latifolius
  • Toxin = Aminoproprionitrite
  • Also known as Perennial Pea, or Everlasting Pea

  • Sweet William Dianthus caryophyllus
  • Toxin = Unknown irritant
  • Also known as Carnation, Wild Carnation, or Pinks.
    Result of ingestion usually limited to mild digestive upset.

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  • Taro Colocasia esculenta / Caladium hortulanum
  • Toxin = Insoluble calcium oxalates
  • Also known as Caladium, Elephant's Ears, or Malanga

  • Tobacco Nicotiana glauca
  • Toxin = Nicotine
  • Also known as Tree Tobacco, Nicotiana, or Mustard Tree

  • Tulip Tulipa sp.
  • Toxin = Tulipalin A and B

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  • Umbrella Tree Schefflera
  • Toxin = Calcium oxalate crystals
  • Also known as Schefflera, Australian Ivy Palm, Octopus Tree, or Starleaf

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  • Vinca Vinca rosea
  • Toxin = Vinca Alkaloids
  • Also known as Periwinkle, or Running Myrtle

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  • Water Hyacinth Eichhornia crassipes
  • Toxin = Unknown

  • Weeping Fig Ficus sp.
  • Toxin = fig, indian rubber plant
  • Also known as fig, or indian rubber plant
  • Winter Cherry Solanum pseudocapsicum
  • Toxin = Solanine
  • Also known as Natal Cherry, or Jerusalem Cherry
  • WisteriaWisteria sp.
  • Toxin = Lectin, wisterin glycoside

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  • Yarrow Achillea millefolium
  • Toxin = Glycoalkaloids (achillen), monoterpenes, sesquiterpene lactones
  • Also known as Milfoil

  • Yellow Oleander Thevetia peruviana
  • Toxin = Cardenolides

  • Yew Taxus spp.
  • Highly Toxic. The most poisonous tree native to the UK. Toxin = Taxine
  • Includes other Yew species such as Japanese Yew, Western Yew etc.

  • Yucca Yucca
  • Toxin = Saponins

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As with all the contents of these page, the above is intended for educational purposes only. This information is not intended as medical advice, and should not replace veterinary consultation or treatment.