Powerscourt Cocker Spaniels - Poisonous Plants To Dogs

Important information – please read: Powerscourt Cocker Spaniels 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 puppy/dog has eaten any of the following plants and/or is showing a bad reaction, remember, the time between eating a plant and a health issue arising varies between the plant eaten, always seek immediate advice if in doubt as delaying expert help may mean the toxin has more time to damage the animal. Your dog 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 puppy's/dog's health.

A - Z of Poisonous Plants
A	B	C	D	E	F	G	H	I	J	K
L	M	O	P	R	S	T	U	V	W	Y

Letter	Common Name (Botanical Name - if known)
A	Aconite (roots, foliage, seeds) Aconitum species - Toxic if eaten, causing nausea and vomiting. May also affect cardiac function – increased heart rate. African violet (leaves) Saintpaulia ionantha Aloe vera - Diarrhoea Amaryllis (bulbs) Hippeastrum species - Upset stomach, hyperactivity, lethargy, coma, shock. Can be fatal. Angels’ trumpets Brugmansia species - Toxic if eaten, causing nausea and vomiting. Angel wings Caladium species - Upset stomach, oral irritation, asphyxiation, tremors, seizures, loss of balance. Can be fatal. Apple (seeds) Malus species - Seeds contain cyanide. Varied toxic effects. Apple leaf croton - Diarrhoea Apricot (kernels) Prunus armeniaca - Kernels contain cyanide. Can be fatal. Arborvitae Thuja species - Harmful if eaten in quantity. May cause a skin allergy. Asparagus fern Asparagus setaceus - Contains a wide variety of poisons resulting in a large range of symptoms. Autumn crocus speciosus - Vomiting, nervous excitement. May cause dermatitis. Avocado (fruit and pith) Persea americana - Diarrhoea, vomiting, laboured breathing. Can be fatal. Azalea (all parts) Rhododenron occidentale - Nausea, vomiting, depression, difficulty breathing and coma. Can be fatal if eaten in large enough quantities. [Back to Top]
B	Baby’s breath Gypsophila paniculata - Eyes, nose, and sinus irritation and asthma after repeated handling. Skin irritation after contact. Barilla (leaves and stems) Salsola soda - causes kidney failure Bird of paradise (seeds) Strelitzia reginae - Gastrointestinal tract affected by the plant toxins. Bittersweet Celastrus angulatus - Toxic if eaten, causing nausea and vomiting. Bleeding heart (foliage, roots) Dicentra formosa -Poisonous in large amounts, contains convulsants. May also cause dermatitis. Bluebell Hyacinthoides - Harmful if eaten in quantity. Box (leaves) Buxus sempervirens - Severe stomach/colic like symptoms, respiratory problems Boxwood (leaves, twigs) Hebe odora Upset stomach, heart failure, excitability or lethargy. May also cause dermatitis. Bracken Pteridium aquilinum -Thiamine deficiency, acute haemorrhagic syndrome, blindness, tumours Broom Cytisus species - Depressed heart and nervous systems, respiratory failure. Buckeyes (nuts and immature growths) Aesculus species - Harmful if eaten in quantity. Burning bush Kochia scoparia - Toxic if eaten, causing nausea and vomiting. May cause a skin allergy. Buttercup Ranunculus species - Juice may severely injure digestive system. May also cause dermatitis. [Back to Top]
C	Caladium species Calico bush Kalmia species - Harmful if eaten in quantity. Calla lily (leaves) Zantedeschia species (as above) Caper Spurge Euphorbia lathyris - Abdominal pains diarrhoea and vomiting Cardinal flower Lobelia cardinalis - Increased salivation Castor bean (leaves and seeds) Ricinus communis - May cause dermatitis. A single Rosary Pea or one/two Castor bean seeds can be fatal. Ceriman Monstera deliciosa - Causes diarrhoea and oral irritation if eaten. May cause dermatitis. Chenille Plant Acalypha hispida Cherry (kernels) Prunus species - Kernels contain cyanide. Cherry laurel Prunus laurocerasus - Harmful if eaten in quantity. Chinaberry Melia azedarach - Vomiting, constipation or diarrhoea, bloody faeces, stomach pain, pulmonary congestion, cardiac arrest, rigidity, lack of coordination and general weakness. Chinese evergreen Aglaonema - Causes severe pain in the mouth Christmas rose (leaves, roots) Helleborus niger - Harmful if eaten in quantity. Chrysanthemum (leaves and stems) Chrysanthemum species - May cause dermatitis. Clematis armandii - Gastrointestinal tract and nervous system affected by plant toxins. May cause dermatitis. Cocoa husks or mulch Similar toxic effects to that of chocolate – hyperactivity, increased heart rate. Can kill if enough is eaten. Corn cockle (seeds) Agrostemma species - Harmful if eaten in quantity. Corn plant Dracaena species - Vomiting (occasionally with blood), depression, anorexia, hypersalivation Crocus Anemone species Colchicum autumnale Croton Codiaeum species Crown vetch Coronilla varia Cuckoo pint Arum maculatum Toxic if eaten, causing nausea and vomiting. May cause a skin allergy. Crowfoot Anunculus species Cycads Encephalartos species Cyclamen species - Gastrointestinal tract affected. Convulsions and paralysis. [Back to Top]
D	Daffodil (bulbs) Narcissus species - Nausea, vomiting, diarrhoea. May also cause dermatitis. Can be fatal. Daphne species - Gastrointestinal tract and kidneys affected. May cause dermatitis. Datura Brugmansia species Deadly nightshade Atropa belladonna - Toxic if eaten, causing nausea and vomiting. Delphinium (seeds, young plants) Delphinium species - Harmful if eaten in quantity. Devil’s fig Solanum hispidium - Harmful if eaten in quantity. Dieffenbachia species - Causes diarrhoea and oral irritation if eaten. May cause dermatitis. Tremors, seizures, loss of balance, asphyxiation. Can be fatal. Dragon tree Dracaena species - Vomiting and diarrhoea. Dumb cane Dieffenbachia amaena - Causes diarrhoea and oral irritation if eaten. May cause dermatitis. Tremors, seizures, loss of balance, asphyxiation. Can be fatal. Dwarf morning glory Convolvulus tricolor - Harmful if eaten in quantity. [Back to Top]
E	Easter lily Lilium longiflorum Echium species - Harmful if eaten in quantity. May cause a skin allergy. Elder (leaves, root, bark) Sambuccus species Elderberry Sambuccus Canadensis - Nausea and vomiting. Elephant ears Bergenia species - Intense burning, irritation and swelling of the mouth and throat. If tongue swells enough to block air passage can be fatal. English ivy (berries and leaves) Hedera helix - Gastrointestinal tract affected. May cause dermatitis. European spindle Euonymus europaeus - Harmful if eaten in quantity. [Back to Top]
F	False hellebore (roots, seeds, leaves) Veratrum album - Toxic if eaten, causing nausea and vomiting. Flannel flower Phylica plumosa - Harmful if eaten in quantity. Flax Linum usitatissimum - Harmful if eaten in quantity. Foxglove (leaves, seeds) Digitalis species - Toxic if eaten, causing nausea and vomiting. Fritillary Fritillaria species Fruit salad plant Monstera deliciosa - Causes diarrhoea and oral irritation if eaten. May cause dermatitis. [Back to Top]
G	Gaultheria Gaulthera mucronata - Harmful if eaten in quantity. Geranium species German ivy (berries and leaves) Delairea odorata - Gastrointestinal tract affected. May cause dermatitis. German primula - Toxic if eaten. May cause skin allergy. Glory lily Gloriosa superba - Toxic if eaten, causing nausea and vomiting. Golden chain (seed capsules) Laburnum - Toxic if eaten, causing nausea and vomiting. Granny’s bonnets Aquilegia vulgaris - Harmful if eaten in quantity. [Back to Top]
H	Heavenly bamboo Nandina domestica Hellebores Helleborus species Heliotrope Heliotropum arborescens Hemlock Tsuga species Henbane Hyposcyamus niger - Toxic if eaten, causing nausea and vomiting. Hibiscus species Holly (berries) Ilex species - Upset stomach, tremors, seizures, loss of balance. Horse chestnut (nuts, leaves) Aesculus hippocastanum - Harmful if eaten in quantity. Hurricane plant (bulb) Monstera deliciosa - Varied toxic effects. Causes diarrhoea and oral irritation if eaten. May cause dermatitis. Hyacinth (bulbs) Hyacinthus orientalis - Harmful if eaten in quantity. May cause a skin allergy. Hydrangea species [Back to Top]
I	Iris (roots) Iris species - Severe digestive upset. May cause dermatitis. Ivy (entire plant) Hedera helix - Harmful if eaten in quantity. [Back to Top]
J	Jack in the pulpit Arisaema species - Causes burning to the mouth. Can cause hallucinations. Japanese spindle Euonymus sieboldianus - Harmful if eaten in quantity. Japanese yew Taxus species Jessamine (berries and sap) Cestrum species Digestive disturbance. Gastrointestinal tract and nervous system affected. Can be fatal. Jerusalem Cherry (immature growths) Solanum pseudocapsicum Gastrointestinal tract affected. May cause dermatitis. Jimson weed (Thorn Apple) Datura stramonium Abnormal thirst, distorted sight, delirium, incoherence, coma. Can be fatal. Jonquil (bulb) Narcissus species Juniper Juniperus species [Back to Top]
K	Kalanchoe species - Depression, rapid breathing, teeth grinding, ataxia, paralysis Kale Brassica oleracea - Haemolytic anaemia, goitre, possible reduced fertility Kingcup Caltha palustris - Harmful if eaten in quantity. [Back to Top]
L	Laburnum (leaves, seeds) Laburnum anagyroides - Toxic if eaten, causing nausea and vomiting. Lantana camara - Toxic if eaten, causing nausea and vomiting. Larkspur (young plants and seeds) Delphinium species - Digestive upset, nervousness, depression. Cardiovascular system affected. May cause dermatitis. Can be fatal. Laurel Prunus species - Harmful if eaten in quantity. Lenton rose Helleborus orientalis - Harmful if eaten in quantity. Leopard lily Belamcanda species - Toxic if eaten, causing nausea and vomiting. May cause a skin allergy. Leyland cypress Cupressocyparis leylandii - Harmful if eaten in quantity. May cause a skin allergy. Lily Lilium species Harmful if eaten in quantity. Lily of the valley (leaves, flowers, roots) Convallaria species - Toxic if eaten, causing nausea and vomiting. Lily of the valley bush Pieris japonica Lobelia species Harmful if eaten in quantity. May cause a skin allergy. Locust Robinia species - Nausea and weakness Lupin (leaves, seeds) Lupinus species - Harmful if eaten in quantity. [Back to Top]
M	Mallow Lavatera species - Harmful if eaten in quantity. Maple Tree Acer species Marijuana Cannabis sativa Contains hallucinogens. Marsh marigold Caltha palustris - Harmful if eaten in quantity. May apple (apples, roots, foliage) Podophyllum peltatum - Severe diarrhoea. Nervous system affected. Meadow rue Thalistrum delavayi - Harmful if eaten in quantity. Mezereon Daphne mezereum Milkweed Ascepias syriaca - Harmful if eaten in quantity. May cause a skin allergy. Mistletoe (berries) Phoradendron flavescens - Gastrointestinal tract affected. May cause dermatitis. If eaten by a puppy, a few berries can be fatal. Monkshood Aconitum napellus - Digestive upset and nervous excitement. Cardiovascular system affected. Morning glory (seeds, roots) Ipomea species - Harmful if eaten in quantity. Moroccan broom Cytisus battandieri - Harmful if eaten in quantity. Mother-in-law’s tongue (leaves) Dieffenbachia amaena Causes diarrhoea and oral irritation if eaten. May cause dermatitis. Tremors, seizures, loss of balance, asphyxiation. Can be fatal. Mountain laurel Kalmia latifolia Harmful if eaten in quantity. [Back to Top]
N	Naked ladies Colchium species - Toxic if eaten, causing nausea and vomiting. Narcissus (bulbs) - Nausea, vomiting, diarrhoea. May cause dermatitis. Can be fatal. Needlepoint ivy (berries and leaves) - Gastrointestinal tract affected. May cause dermatitis. Nerine bowdenii Nightshades Solanum species Intense digestive disturbances. Can be fatal. [Back to Top]
O	Oak tree (foliage and acorns) Quercus species - Affects kidneys. Symptoms appear after several days. Oleander Nerium oleander - Affects the heart, produces severe digestive upset, extremely poisonous. May cause dermatitis. Can be fatal. Onion Allium species Causes anaemia. - Onions should not be fed to dogs in any form. [Back to Top]
P	Paspalum (seeds) Paspalum species - Dermatitis Pasque flower Pulsatilla vulgaris - Harmful if eaten in quantity. Peace lily Spathiphyllum species - Gastrointestinal tract affected. May cause dermatitis. Peach (stones and leaves) Prunus persica - Contain cyanide. Pencil cactus Opuntia leptocaulis Peony (roots) Paeonia species Peruvian lily Chlidanthus fragans - Harmful if eaten in quantity. May cause a skin allergy. Philodendron species (leaves) Causes diarrhoea and oral irritation if eaten. May cause dermatitis. Pineapple broom Cytisus battandieri - Harmful if eaten in quantity. Poinsettia (leaves, stems and sap) Euphorbia pulcherrima Diarrhoea, abdominal cramps, delirium. Sap can cause irritation and if rubbed in eyes, blindness. May also cause dermatitis. Poison hemlock Conium maculatum Nervous system affected. May cause dermatitis. Can be fatal. Poison ivy (leaves, bark and fruit) Toxicodendron radicans Poisonous. - Can cause severe blistering dermatitis if they come into contact with skin. Poison oak (leaves, bark and fruit) Toxicodendron May cause dermatitis. Poison sumac Toxicodendron vernix Poisonous. - Can cause severe blistering dermatitis if they come into contact with skin. Pokeroot Phytolacca americana - Toxic if eaten, causing nausea and vomiting. Pokeweed Phytolacca americana - Toxic if eaten, causing nausea and vomiting. Poppy (unripe seedpod) Papaver species - Harmful if eaten in quantity. Potato (green skin and sprouts) Solanum tuberosum Prickly poppy Argemone mexicana - Harmful if eaten in quantity. Primrose (leaves) Primula vulgaris - Upset stomach. May cause dermatitis. Privet (leaves) Ligustrum species - Harmful if eaten in quantity. [Back to Top]
R	Ragwort Senecio species - Causes kidney failure and liver damage which is irreversible. Minute doses fatal, often wrongly diagnosed. Raisins - Causes kidney failure. Can be fatal. Rape Brassicus napus - Haemolytic anaemia, blindness, damage to nervous system, digestive disorders, breathing problems Red-ink plant Phytolacca americana - Toxic if eaten, causing nausea and vomiting. Rhododendron species - Nausea, vomiting, depression, difficulty breathing and coma. Can be fatal. Rhubarb (leaves) Rheum species - Large amounts of raw or cooked leaves can cause convulsions and coma. Can be fatal. Rosebay Rhododendron aureum - Toxic if eaten, causing nausea and vomiting. Ros periwinkle Catharanthus roseus - Harmful if eaten in quantity. Rue Ruta graveolens - Toxic if eaten, causing nausea and vomiting. May cause a skin allergy. [Back to Top]
S	Sago palm Cycas revoluta - Can be fatal. Savin Juniperus sabina - Harmful if eaten in quantity. Schefflera Brassaia actinophylla - Harmful if eaten in quantity. May cause a skin allergy. Silkweed Asclepias species - Harmful if eaten in quantity. Snowdrops Galanthus species Solomon’s seal Polygonatum - Harmful if eaten in quantity. Spider plant Chlorophytum species - May cause vomiting and salivation. Spruce Tree Picea species Spurge Euphorbia species - Harmful if eaten in quantity. May cause a skin allergy. Squill Scilla species - Harmful if eaten in quantity. Star-of-Bethlehem (bulbs) Ornithogalum species - Harmful if eaten in quantity. Starflower Smilacina stellata - Harmful if eaten in quantity. St Johns Wort Hypericum perforatum - Harmful if eaten in quantity. String of pearls/beads Senecio rowleyanus or herreianus Sweet pea (stem) Lathyrus odoratus - Harmful if eaten in quantity. Swiss cheese plant Monstera deliciosa - Causes diarrhoea and oral irritation if eaten. May cause dermatitis. [Back to Top]
T	Taro vine Monstera deliciosa - Causes diarrhoea and oral irritation if eaten. May cause dermatitis. Tiger lily Lilium (Especially poisonous to cats) Tobacco plant (leaves) Nicotiana - Harmful if eaten in quantity. Tobira Pittosporum tobira Tomato plant (green fruit, stem and leaves) Lycopersicon lycospersicum Tulip Tulipa species - Harmful if eaten in quantity. May cause a skin allergy. [Back to Top]
V	Varnish tree Toxicodendron vernicifluum Poisonous. - Can cause severe blistering dermatitis if they come into contact with skin. [Back to Top]
W	Walnut (green hull juice) Juglans nigra Water hemlock Cicuta maculata - Violent painful convulsions. Can be fatal. Wax tree Toxicodendron succedaneum Poisonous. - Can cause severe blistering dermatitis if they come into contact with skin. Weeping fig Ficus species Wild cherry tree (twigs and foliage) Prunus avium - Gasping, excitement, prostration. Can be fatal. Windflower Anemone species - Harmful if eaten in quantity. Wisteria (pods, seeds) Wisteria - Nausea, repeated vomiting, stomach pains, severe diarrhoea, dehydration and collapse. Wolfsbane Aconitum septentrionale - Toxic if eaten, causing nausea and vomiting. Woody nightshade - Toxic if eaten, causing nausea and vomiting. [Back to Top]
Y	Yarrow Achillea species Yew (berries and foliage) Taxus species - Dizziness, dry mouth and mydriasis develop within one hour, followed by abdominal cramping, salivation and vomiting. Foliage is more fatal than berries, death can be sudden without warning or symptoms. Can be fatal. [Back to Top]