Plants Toxic to Horses
Plants confirmed toxic to horses, sourced from the ASPCA Animal Poison Control horse list. Pasture and hedge plants are common exposure sources for grazing horses.
213 plants
Advertisement
Adam-and-Eve
Arum maculatum
African Wonder Tree
Ricinus communis
Alocasia
Alocasia spp.
Aloe
Aloe vera
Alsike Clover
Trifolium hybridum
Amaryllis
Amaryllis spp.
Ambrosia Mexicana
Chenopodium botrys
American Bittersweet
Celastrus scandens
American Holly
Ilex opaca
American Mandrake
Podophyllum peltatum
American Yew
Taxus canadensus
Andromeda Japonica
Pieris japonica
Angelica Tree
Aralia spinosa
Apple
Malus sylvestrus
Apricot
Prunus armeniaca
Arrow-Head Vine
Syngonium podophyllum
Arum
Arum maculatum
Arum Lily
Zantedeschia aethiopica
Australian Ivy Palm
Brassaia actinophylla
Autumn Crocus
Colchicum autumnale
Avocado
Persea americana
Azalea
Rhododendron spp
Baby Doll Ti Plant
Cordyline terminalis
Barbados Aloe
Aloe barbadensis
Barnaby's Thistle
Centaurea solstitialis
Bay Laurel
Laurus nobilis
Bead Tree
Melia azedarach
Begonia
Begonia spp.
Bergamot Orange
Citrus Aurantium
Bird of Paradise Flower
Strelitzia reginae
Bishop's Weed
Ammi majus
Bitter Root
Apocynum androsaemifolium
Black Calla
Arum palestinum
Black Cherry
Prunus serotina
Black Laurel
Leucothoe spp.
Black Nightshade
Solanum nigrum
Black Walnut
Juglans nigra
Bog Laurel
Kalmia poliifolia
Borage
Borage officinalis
Boxwood
Buxus spp.
Bracken Fern
Pteridium aquilinum
Branching Ivy
Hedera helix
Bread and Butter Plant
Coleus ampoinicus
Brunfelsia
Brunfelsia species
Buckeye
Aesculus spp
Buckwheat
Fagopyrum spp.
Buddhist Pine
Podocarpus macrophylla
Bull Pine
Pinus ponderosa
Burning Bush
Euonymus atropurpurea
Buttercup
Ranunculus spp.
Butterfly Iris
Iris spuria
Caladium
Caladium hortulanum
Calla Lily
Zantedeschia aethiopica
Cape Jasmine
Gardenia jasminoides
Cardboard Cycad
Zamia furfuracea
Cardboard Palm
Zamia spp.
Cardinal Flower
Lobelia cardinalis
Carnation
Dianthus caryophyllus
Carolina Maple
Acer rubrum
Castor Bean Plant
Ricinus communis
Catsear
Hypochaeris radicata
Ceriman
Monstera deliciosa
Chandelier Plant
Kalanchoe tubiflora
Charlock
Brassica kaber
Charming Dieffenbachia
Dieffenbachia amoena
Cherry
Prunus spp.
Chinaberry Tree
Melia azedarach
Chinese Evergreen
Aglaonema modestum
Chinese Jade
Crassula arborescens
Chives
Allium schoenoprasum
Choke Cherry
Prunus virginiana
Christmas Rose
Helleborus niger
Chrysanthemum
Chrysanthemum spp.
Clematis
Clematis spp.
Climbing Lily
Gloriosa superba
Climbing Nightshade
Solanum dulcamara
Clusia Rosea
Clusia major
Coffee Tree
Polyscias guilfoylei
Coleus
Coleus ampoinicus
Common Privet
Ligustrum vulgare
Coontie Palm
Zamia pumila
Copperleaf
Acalypha godseffiana
Cordatum
Philodendron oxycardium
Corn Plant
Dracaena fragrans
Cow parsnip
Heracleum maximum
Cowbane
Cicuta species
Cuckoo-pint
Arum maculatum
Cutleaf Philodendron
Monstera deliciosa
Cycads
Cycas and Zamia species
Cyclamen
Cyclamen spp
Daffodil
Narcissus spp
Dahlia
Dahlia species
Deadly Nightshade
Solanum spp
Desert Azalea
Adenium obesum
Desert Rose
Adenium obesum
Devils Ivy
Epipremnum aureum
Dock
Rumex sp.
Dog Hobble
Leucothoe sp.
Dogbane Hemp
Apocynum spp.
Dwarf Poinciana
Caesalpinia pulcherrima
Elephant Ears (Colocasia esculenta)
Colocasia esculenta
Emerald Feather
Asparagus densiflorus
English Holly
Ilex aquifolium
English Ivy
Hedera helix
English Yew
Taxus baccata
Eucalyptus
Eucalyptus species
Fern Palm
Zamia spp.
Fetter Bush
Leucothoe spp.
Fetterbush
Lyonia spp.
Field Horsetail
Equisetum arvense
Fig
Ficus benjamina
Figwort
Ranunculus acris
Flamingo Flower
Anthurium scherzeranum
Foxglove
Digitalis purpurea
Garlic
Allium sativum
Geranium
Pelargonium species
Giant Dracaena
Cordyline australis
Giant Hogweed
Heracleum maximum
Gladiola
Gladiolus species
Gloriosa Lily
Gloriosa superba
Golden Pothos
Epipremnum aureum
Golden Ragwort
Senecio species
Groundsel
Senecio species
Hashish
Cannabis sativa
Heartleaf Philodendron
Philodendron hederaceum
Heavenly Bamboo
Nandina domestica
Hellebore
Helleborus niger
Hoary Alyssum
Berteroa incana
Holly
Ilex opaca
Horse Chestnut
Aesculus glabra
Hosta
Hosta plataginea
Hyacinth
Hyacinthus orientalis
Hydrangea
Hydrangea arborescens
Iris
Iris species
Jack-in-the-pulpit
Arisaema triphyllum
Jade Plant
Crassula argentea
Japanese Yew
Taxus sp.
Jerusalem Cherry
Solanum pseudocapsicum
Jimmy Weed
Haplopappus heterophyllus
Kalanchoe
Kalanchoe spp
Klamath Weed
Hypericum perforatum
Lambkill
Kalmia augustifolia
Lantana
Lantana camara
Larkspur
Delphinium species
Laurel
Kalmia latifolia
Lavender
Lavendula angustifolia
Leek
Allium ampeloprasum
Lily of the Valley
Convallaria majalis
Lily-of-the-Valley Bush
Pieris japonica
Loco Weed
Astragalus spp.
Lucky Bamboo
Dracaena sanderiana
Marijuana
Cannabis sativa
Mauna Loa Peace Lily
Spathiphyllum
Mayapple
Podophyllum peltatum
Meadow Saffron
Colchicum autumnale
Milfoil
Achillea millefolium
Milkweed
Asclepias species
Mistletoe "American"
Phoradendron flavescens
Mole Bean Plant
Ricinus communis
Morning Glory
Ipomoea spp
Mountain Laurel
Kalmia latifolia
Nandina
Nandina domestica
Narcissus
Narcissus spp
Nicotiana
Nicotiana glauca
Nightshade
Solanum spp
Oak
Quercus species
Oleander
Nerium oleander
Onion
Allium cepa
Peace Lily
Spathiphyllum
Peach
Prunus persica
Peacock Flower
Caesalpinia pulcherrima
Pencil Cactus
Euphorbia tirucalli
Peony
Paeonis officinalis
Periwinkle
Vinca rosea
Philodendron Pertusum
Philodendron spp
Plum
Prunus domestica
Poinciana
Caesalpinia gilliessi
Poinsettia
Euphorbia pulcherrima
Poison Hemlock
Conium maculatum
Ponderosa Pine
Pinus ponderosa
Pothos
Epipremnum aureum
Privet
Ligustrum japonicum
Ragwort
Senecio species
Red Maple
Acer rubrum
Rhododendron
Rhododendron spp
Rhubarb
Rheum rhabarbarium
Rosary Pea
Abrus precatorius
Rosebay
Rhododendron spp
Russian Knapweed
Centaurea repens
Sacred Bamboo
Nandina domestica
Sago Palm
Cycas revoluta, zamia species
Sheepkill
Kalmia latifolia
Skunk Cabbage
Symplocarpus foetidus
Solomon's Lily
Arum palestinum
Sorrel
Rumex scutatus
St. John's Wort
Hypericum perforatum
Starch Root
Arum maculatum
Superb Lily
Gloriosa superba
Sweet Pea
Lathyrus latifolius
Swiss Cheese Plant
Monstera deliciosa
Tulip
Tulipa spp.
Wahoo
Euonymus occidentalis
Wake Robin
Arum maculatum
Water Hemlock
Cicuta maculata
White Snakeroot
Ageratina altissima
Wild Arum
Arum palestinum
Wild Calla
Arum palestinum
Wisteria
Wisteria spp.
Yarrow
Achillea millefolium
Yellow Oleander
Thevetia peruviana
Yellow Starthistle
Centaurea solstitialis
Yew
Taxus spp.
Yew Pine
Podocarpus macrophylla
Advertisement