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IMPORTANT INFORMATION – please read
Dogs Trust assumes no liability for the content of the following list. This does not represent a
complete list of all poisonous plants and is only intended as a guide. Please contact your
veterinary surgeon for advice or treatment immediately if you think your pet has eaten any of the
following plants and is showing a bad reaction. Your pet may also have a sensitivity or allergy to a
plant that is not on the list, so always be vigilant and seek help if you are worried about your pet’s
health.

Common name
Botanical name
Details (if known)
Aconite (roots,
Aconitum
Toxic if eaten, causing nausea and vomiting. May foliage, seeds)
species
also affect cardiac function – increased heart rate. African violet
Saintpaulia
(leaves)
ionantha
Aloe vera
Aloe vera
Hippeastrum
Upset stomach, hyperactivity, lethargy, coma, Amaryllis (bulbs)
species
shock. Can be fatal.
Brugmansia
Angels’ trumpets
Toxic if eaten, causing nausea and vomiting. species
Caladium
Upset stomach, oral irritation, asphyxiation, tremors, Angel wings
species
seizures, loss of balance. Can be fatal.
Apple (seeds)
Malus species
Seeds contain cyanide. Varied toxic effects. Apple leaf croton
Prunus
Apricot (kernels)
Kernels contain cyanide. Can be fatal.
armeniaca
Harmful if eaten in quantity. May cause a skin Arborvitae
Thuja species
Arrow grasses
Triglochin
(leaves)
species
Asparagus
Contains a wide variety of poisons resulting in a Asparagus fern
setaceus
Crocus
Autumn crocus
speciosus
Avocado (fruit &
Persea
Diarrhoea, vomiting, laboured breathing. Can be
americana
fatal.
Nausea, vomiting, depression, difficulty breathing
Rhododenron
and coma. Can be fatal if eaten in large enough
Azalea (all parts)
occidentale
quantities.

Gypsophila
Baby’s breath
paniculata
Barilla (leaves &
Salsola soda
Bird of paradise
Strelitzia reginae
Gastrointestinal tract affected by the plant toxins. Celastrus
Bittersweet
Toxic if eaten, causing nausea and vomiting. angulatus
Bleeding heart
Poisonous in large amounts, contains convulsants. Dicentra formosa
(foliage, roots)
Bluebell
Hyacinthoides
Buxus
Box (leaves)
sempervirens
Boxwood (leaves,
Upset stomach, heart failure, excitability or lethargy. Hebe odora
Pteridium
aquilinum
Cytisus species
Buckeyes (nuts &
Aesculus
immature growths)
species
Toxic if eaten, causing nausea and vomiting. May Burning bush
Kochia scoparia
Ranunculus
Juice may severely injure digestive system. May Buttercup
species
Caladium
Caladium
species
Calico bush
Kalmia species
Zantedeschia
Calla lily (leaves)
species
Euphorbia
Caper Spurge
lathyris
Lobelia
Cardinal flower
cardinalis
Castor bean
Ricinus
May cause dermatitis. A single Rosary Pea or (leaves and seeds)
communis
one/two Castor bean seeds can be fatal.
Monstera
Causes diarrhoea and oral irritation if eaten. May deliciosa
Chenille Plant
Acalypha hispida
Cherry (kernels)
Prunus species
Prunus
Cherry laurel
laurocerasus
China Berry
Melia azedarach
Chinese evergreen
Aglaonema
Christmas rose
Helleborus niger
(leaves, roots)
Chrysanthemum
Chrysanthemum
(leaves & stems)
species
Cineraria
Senecio species
Clematis
Gastrointestinal tract and nervous system affected Clematis
armandii
by plant toxins. May cause dermatitis. Similar toxic effects to that of chocolate – Cocoa husks or
hyperactivity, increased heart rate. Can kill if Corn cockle
Agrostemma
species
Dracaena
Corn plant
species
Anemone
species
Colchicum
autumnale
Codiaeum
species
Crown vetch
Coronilla varia
Toxic if eaten, causing nausea and vomiting. May Cuckoo pint
Arum maculatum
Anunculus
Crowfoot
species
Encephalartos
species
Cyclamen
Gastrointestinal tract affected. Convulsions and Cyclamen
species
Narcissus
Nausea, vomiting, diarrhoea. May also cause Daffodil (bulbs)
species
dermatitis. Can be fatal.
Gastrointestinal tract and kidneys affected. May
Daphne species
Brugmansia
species
Atropa
Deadly nightshade
Toxic if eaten, causing nausea and vomiting. belladonna
Delphinium (seeds,
Delphinium
young plants)
species
Solanum
Devil’s fig
hispidium
Causes diarrhea and oral irritation if eaten. May Dieffenbachia
Dieffenbachia
cause dermatitis. Tremors, seizures, loss of species
balance, asphyxiation. Can be fatal.
Dracaena
Dragon tree
species
Causes diarrhoea and oral irritation if eaten. May Dieffenbachia
Dumb cane
cause dermatitis. Tremors, seizures, loss of amaena
balance, asphyxiation. Can be fatal.
Dwarf morning
Convolvulus
tricolor
Lilium
Easter lily
longiflorum
Harmful if eaten in quantity. May cause a skin Echium Echium
species
Elder (leaves, root,
Sambuccus
species
Sambucus
Elderberry
canadensis
Intense burning, irritation and swelling of the mouth Elephant ears
Bergenia species
and throat. If tongue swells enough to block air
passage can be fatal.
English ivy
Gastrointestinal tract affected. May cause Hedera helix
(berries & leaves)
Euonymus
European spindle
europaeus
False hellebore
(roots, seeds,
Veratrum album
Toxic if eaten, causing nausea and vomiting. leaves)
Flannel flower
Phylica plumosa
Linum
usitatissimum
Foxglove (leaves,
Digitalis species
Toxic if eaten, causing nausea and vomiting. seeds)
Fritillary
Fritillaria species
Monstera
Causes diarrhoea and oral irritation if eaten. May Fruit salad plant
deliciosa
Gaulthera
Gaultheria
mucronata
Geranium
Geranium
species
German ivy
Gastrointestinal tract affected. May cause Delairea odorata
(berries & leaves)
German primula
Glory lily
Gloriosa superba
Toxic if eaten, causing nausea and vomiting. Golden chain
Laburnum
Toxic if eaten, causing nausea and vomiting. (seed capsules)
Aquilegia
Granny’s bonnets
vulgaris
Nandina
Heavenly bamboo
domestica
Helleborus
Hellebores
species
Heliotropum
Heliotrope
arborescens
Tsuga species
Hyposcyamus
Toxic if eaten, causing nausea and vomiting. niger
Hibiscus
Hibiscus species
Holly (berries)
Ilex species
Upset stomach, tremors, seizures, loss of balance. Horse chestnut
Aesculus
(nuts, leaves)
hippocastanum
Hurricane plant
Monstera
Varied toxic effects. Causes diarrhoea and oral deliciosa
irritation if eaten. May cause dermatitis. Hyacinthus
Harmful if eaten in quantity. May cause a skin Hyacinth (bulbs)
orientalis
Hydrangea
Hydrangea
species
Iris (roots)
Iris species
Severe digestive upset. May cause dermatitis. Ivy (entire plant)
Hedera helix
Arisaema
Jack in the pulpit
species
Euonymus
Japanese spindle
sieboldianus
Japanese yew
Taxus species
Jessamine (berries
Digestive disturbance. Gastrointestinal tract and Cestrum species
& sap)
nervous system affected. Can be fatal.
Jerusalem Cherry
Solanum
Gastrointestinal tract affected. May cause (immature
pseudocapsicum
growths)
Jimson weed
Datura
Abnormal thirst, distorted sight, delirium, (Thorn Apple)
stramonium
incoherence, coma. Can be fatal.
Narcissus
Jonquil (bulb)
species
Juniperus
species
Kalanchoe
Depression, rapid breathing, teeth grinding, ataxia, Kalanchoe
species
Brassica
Haemolytic anaemia, goitre, possible reduced oleracea
Caltha palustris
Laburnum (leaves,
Laburnum
Toxic if eaten, causing nausea and vomiting. anagyroides
Lantana camara
Toxic if eaten, causing nausea and vomiting. Digestive upset, nervousness, depression. Larkspur (young
Delphinium
Cardiovascular system affected. May cause plants & seeds)
species
dermatitis. Can be fatal.
Prunus species
Helleborus
Lenton rose
orientalis
Belamcanda
Toxic if eaten, causing nausea and vomiting. May Leopard lily
species
Cupressocyparis
Harmful if eaten in quantity. May cause a skin Leyland cypress
leylandii
Lilium species
Lily of the valley
Convallaria
(leaves, flowers,
Toxic if eaten, causing nausea and vomiting. species
roots)
Lily of the valley
Pieris japonica
Harmful if eaten in quantity. May cause a skin Lobelia species
Robinia species
Lupin (leaves,
Lupinus species
seeds)
Mallow
Lavatera species
Maple Tree
Acer species
Marijuana
Cannabis sativa
Marsh marigold
Caltha palustris
May apple (apples,
Podophyllum
Severe diarrhoea. Nervous system affected. roots, foliage)
peltatum
Thalistrum
Meadow rue
delavayi
Daphne
Mezereon
mezereum
Harmful if eaten in quantity. May cause a skin Milkweed
Ascepias syriaca
allergy. Gastrointestinal tract affected. May cause Phoradendron
Mistletoe (berries)
dermatitis. If eaten by a puppy, a few berries can
flavescens
be fatal.
Aconitum
Monkshood
napellus
Morning glory
Ipomea species
(seeds, roots)
Cytisus
Moroccan broom
battandieri
Mother-in-law’s
Dieffenbachia
Causes diarrhoea and oral irritation if eaten. May tongue (leaves)
amaena
cause dermatitis. Tremors, seizures, loss of balance, asphyxiation. Can be fatal.
Mountain laurel
Kalmia latifolia
Colchium
Naked ladies
Toxic if eaten, causing nausea and vomiting. species
Narcissus
Nausea, vomiting, diarrhoea. May cause dermatitis. Narcissus
(bulbs)
Can be fatal.
Needlepoint ivy
Gastrointestinal tract affected. May cause (berries & leaves)
Nerine bowdenii
Nightshades
Solanum species
Intense digestive disturbances. Can be fatal.
Oak tree (foliage &
Affects kidneys. Symptoms appear after several Quercus species
days. Affects the heart, produces severe digestive upset, Oleander
Nerium oleander
extremely poisonous. May cause dermatitis. Can be
fatal.
Causes anemia. Onions should not be fed to
Allium species
dogs in any form.
Paspalum
Paspalum (seeds)
species
Pulsatilla
Pasque flower
vulgaris
Spathiphyllum
Gastrointestinal tract affected. May cause Peace lily
species
Peach (stones &
Prunus persica
Opuntia
Pencil cactus
leptocaulis
Peony (roots)
Paeonia species
Harmful if eaten in quantity. May cause a skin Chlidanthus
Peruvian lily
fragans
Philodendron
Causes diarrhoea and oral irritation if eaten. May Philodendron
species (leaves)
Cytisus
Pineapple broom
battandieri
Diarrhea, abdominal cramps, delirium. Sap can Poinsettia (leaves,
Euphorbia
cause irritation and if rubbed in eyes, blindness. stems & sap)
pulcherrima
Conium
Nervous system affected. May cause dermatitis. Poison hemlock
maculatum
Can be fatal.
Poison ivy (leaves,
Toxicodendron
Poisonous. Can cause severe blistering dermatitis if bark & fruit)
radicans
Poison oak
(leaves, bark &
Toxicodendron
Toxicodendron
Poisonous. Can cause severe blistering dermatitis if Poison sumac
vernix
Phytolacca
Pokeroot
Toxic if eaten, causing nausea and vomiting. americana
Phytolacca
Pokeweed
Toxic if eaten, causing nausea and vomiting. americana
Poppy (unripe
Papaver species
seedpod)
Potato (green skin
Solanum
& sprouts)
tuberosum
Argemone
Prickly poppy
mexicana
Primrose (leaves)
Primula vulgaris
Ligustrum
Privet (leaves)
species
Causes kidney failure and liver damage which is Senecio species
irreversible. Minute doses fatal, often wrongly
diagnosed.
Causes kidney failure. Can be fatal. Haemolytic anaemia, blindness, damage to nervous Brassicus napus
system, digestive disorders, breathing problems Phytolacca
Red-ink plant
Toxic if eaten, causing nausea and vomiting. americana
Rhododendron
Nausea, vomiting, depression, difficulty breathing Rhododendron
species
and coma. Can be fatal.
Large amounts of raw or cooked leaves can cause
Rhubarb (leaves)
Rheum species
convulsions and coma. Can be fatal.
Rhododendron
Toxic if eaten, causing nausea and vomiting. aureum
Catharanthus
Rose periwinkle
roseus
Toxic if eaten, causing nausea and vomiting. May Ruta graveolens

Sago palm
Cycas revoluta
Can be fatal
Juniperus sabina
Brassaia
Harmful if eaten in quantity. May cause a skin Schefflera
actinophylla
Asclepias
Silkweed
species
Galanthus
Snowdrops
species
Solomon’s seal
Polygonatum
Chlorophytum
Spider plant
species
Spruce Tree
Picea species
Euphorbia
Harmful if eaten in quantity. May cause a skin species
Scilla species
Star-of-Bethlehem
Ornithogalum
species
Smilacina
Starflower
stellata
Hypericum
St Johns Wort
perforatum
Senecio
String of
rowleyanus or
pearls/beads
herreianus
Lathyrus
Sweet pea (stem)
odoratus
Monstera
Causes diarrhoea and oral irritation if eaten. May Swiss cheese plant
deliciosa
Monstera
Causes diarrhoea and oral irritation if eaten. May Taro vine
deliciosa
Tiger lily
Lilium
Tobacco plant
Nicotiana
(leaves)
Pittosporum
tobira
Tomato plant
Lycopersicon
(green fruit, stem &
lycospersicum
Harmful if eaten in quantity. May cause a skin Tulipa species
Schlefflera
Umbrella plant
Toxic if eaten, causing vomiting, diarrhoea. species
Toxicodendron
Poisonous. Can cause severe blistering dermatitis if Varnish tree
vernicifluum
Walnut (green hull
Juglans nigra
juice)
Water hemlock
Cicuta maculata
Violent painful convulsions. Can be fatal.
Toxicodendron
Poisonous. Can cause severe blistering dermatitis if succedaneum
Weeping fig
Ficus species
Wild cherry tree
Prunus avium
Gasping, excitement, prostration. Can be fatal.
(twigs & foliage)
Anemone
Windflower
species
Wisteria (pods,
Nausea, repeated vomiting, stomach pains, severe Wisteria
Aconitum
Wolfsbane
Toxic if eaten, causing nausea and vomiting. septentrionale
Woody nightshade
Toxic if eaten, causing nausea and vomiting. Achillea species
Dizziness, dry mouth and mydriasis develop within one hour, followed by abdominal cramping, Yew (berries &
Taxus species
salivation and vomiting. Foliage is more fatal than foliage)
berries, death can be sudden without warning or
symptoms. Can be fatal.
List of common potentially poisonous household and garden substances –as supplied by
the VPIS (Veterinary Poisons Information Service)

Anticoagulant rodenticides
difenacoum bromadiolone brodadiolone coumatetralyl Ibuprofen
Metaldehyde
Human oral contraceptives (very low toxicity)
Chocolate / theobromine
Diclofenac sodium (a similar drug to Ibuprofen)
Salbutamol
Alphachloralose rodenticides
Paraquat
Wallpaper paste (very low toxicity)
Borax / Boric acid ant killer gels
Bonemeal
Glyphosate based herbicides
Asprin
Cannabis
Batteries
Bendiocarb
White spirit / barbecue lighter fluid
Antifreeze
Loperamide
Bleach
Pyrethrin-based insecticides
Creosote
Temazepam
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Source: http://friendsofborges.is/Argos/books/dog_poisonous_plants.pdf