Thank you to the Humane Society of America and Proven Winners for this information.

Four-legged companions enjoy the outdoors as much, or more, as their human friends. If you share a yard with a pet, use containers to keep fragile flowers out of harm’s way, and plant rugged perennials, such as Ajugas, Heuchera, and Ivies in areas with heavy paw traffic.

Four-legged companions enjoy the outdoors as much, or more, as their human friends.  If you share a yard with a pet, use containers to keep fragile flowers out of harms way, and plant rugged perennials, such as Ajuga, Coral bells and Ivy in areas with heavy paw traffic

While plants add a touch of color and fragrance to our daily lives, some can be dangerous to our pets. Keep your pets in mind when creating your outdoor living space for your family. Poisonous plants produce a variety of toxic substances and can cause reactions ranging from mild nausea to death.

Below is a list of some of the common plants that may produce a toxic reaction with your pet. This list is intended only as a guide to plants that are generally identified as having the capability for producing a toxic reaction

Poisonous Plant List 

Plant

Genus

Toxic Part

Plant Type

Aconite/Monkshood

Aconitum

roots, foliage, seeds

garden flower

Apple

Malus sylvestris

seeds

cultivated tree

Arrowgrass

Triglochin maritimum

leaves

marsh plants

Autumn Crocus

Colchicum autumnale

entire plant

garden flower

Azaleas

Rhododendron

entire plant

cultivated & wild shrub

Baneberry

Actaea

berries, roots

wildflower

Bird-of-Paradise bush

Caesalpinia

pods

garden flower

Bird-of-Paradise flower

Strelitzia reginae

pods

garden flower

Black Locust

Robinia

entire plant esp. bark, shoots

tree

Bloodroot

Sanguinaria

entire plant esp. stem, roots

wildflower, herb

Buckeye

Aesculus

sprouts, nuts, seeds

tree

Buttercup

Ranunclus

entire plant esp. leaves

wildflower, garden herb

Caladium

Arum

entire plant

house plant

Carolina Jessamine

Gelsemium sempervirens

flowers, leaves

ornamental plant

Castor bean 

Ricinus communis

entire plant esp. beans

house plant

Chockcherries

Prunus

leaves, cherries, pit

wild shrub

Christmas Berry  

Heteromeles arbutifolia

leaves

shrub

Christmas Rose  

Helleborus

rootstock, leaves

garden flower

Common Privet  

Ligustrum vulgare

leaves, berries

ornamental shrub

Corn Cockle 

Agrostemma githago

seeds

wildflower, weed

Cow Cockle  

Saponaria vaccaria

seeds

wildflower, weed

Cowbane

Oxypolis rigidior

entire plant esp. roots

wildflower, herb

Cowslip

Caltha

entire plant esp. leaves, stem

wildflower, herb

Daffodil 

Narcissus

bulbs

garden flower

Daphne

Daphne mezereum

 bark, berries, leaves

ornamental shrub

Day Lily 

Hemerocallis

 entire plant is toxic to cats

garden & wildflower

Deadly Nightshade, 

Belladonna Atropa

entire plant esp. seeds, roots

garden herb

Death Camas

Zygadenus

 leaves, stems, seeds, flowers

 field herb

Delphinium (Larkspur)

Delphinium

entire plant esp. sprouts

wildflower

Dumbcane 

Dieffienbachia

entire plant

house plant

Dutchman’s Breeches  

Dicentra

roots, foliage

wild & garden flower

Easter Lily 

Lilium

entire plant is toxic to cats

 flowering house plant

Elderberry 

Sambucus

leaves, bark, roots, buds

 tree

Elephant’s Ear 

Colocasia or Alocasia

entire plant

house plant

English Ivy 

Hedera helix

entire plant esp. leaves, berries

ornamental vine

European Bittersweet  

Solanum

entire plant esp. berries

vine

False Flax 

Camelina microcarpa

seeds

wild herb

False Hellebore  

Veratrum

roots, leaves, seeds

ornamental flower

Fan Weed 

Thlaspi arvense

seeds

wildflower, herb

Field Peppergrass  

Lipidium campestre

seeds

wildflower, herb

Flax

Linum

seedpods

wildflower, herb

Foxglove  

Digitalis

leaves

wild & garden flower

Holly 

Ilex

berries

shrub

Horse Chestnut 

Aesculus

nuts, sprouts

tree

Horse Nettle  

Solanum

entire plant esp. berries

wildflower, herb

Hyacinth  

Hyacinthus

bulbs

wild & house plant

Iris 

Iris

leaves, roots

wild & garden flower

Jack-in-the-pulpit  

Arisaema

entire plant esp. roots, leaves

wildflower

Jatropha 

Jatropha

seeds

tree, shrub

Jerusalem Cherry 

Solanum

unripe fruit, foliage

ornamental plant

Jimson Weed  

Datura

entire plant esp. seeds

field plant

Laburum  

Laburnum anagyroides

seeds, pods, flowers

ornamental plant

Lantana

Lantana

foliage

house plant.annual

Laurels 

Laurus

leaves

shrub

Lily of the Valley  

Convallaria majalis

leaves, flowers

garden & wildflower

Lupine

Lupinus

seeds, pods

shrub

Manchineel Tree

Hippomane mancinella

sap, fruit

tree

Matrimony Vine  

Lycium barbarum

leaves, shoots

ornamental vine

Mayapple  

Podophyllum peltatum

unripe fruit, roots, foliage

wildflower

Milk Vetch  

Astragalus

entire plant

wildflower

Mistletoe  

Phoradendron or Viscum album

berries

house plant

Moonseed  

Menispermum

fruit, roots

vine

Morning Glory 

Ipomoea tricolor

 seeds, roots

wildflower

Mountain Mahogany  

Cercocarpus

leaves

shrub

Mustards  

Brassica

seeds

wildflower

Narcissus  

Narcissus

bulbs

garden flower

Nicotiana  

Nicotiana

leaves

garden flower

Nightshade  

Atropa belladonna or Solanum

leaves, berries

wildflower, vine

Oaks  

Quercus

shoots, leaves

tree

Oleander 

Nerium

 leaves

ornamental shrub

Philodendrons 

Philodendron or Monstera

entire plant

house plant

Poinsettia 

Euphorbia

leaves, stem, flowers

house plant

Poison Hemlock

Conium

leaves, stem, fruit

field plant

Pokeweed 

Phytolacca

roots, seeds, berries

field plant

Potato 

Solanum tuberosum

shoots, sprouts

garden plant

Rattle Box  

Crotalaria

entire plant

wildflower

Rhododendron  

Rhododendron

leaves

ornamental shrub

Rhubarb 

Rheum rhaponticum

leaves

garden plant

Rosary Pea  

Arbrus precatorius

seeds

house plant

Sago Palm 

Cycas revoluta

entire plant esp seeds

ornamental plant

Skunk Cabbage 

Symplocarpus and Veratrum

entire plant esp roots, leaves

marsh plant

Smartweeds  

Persicaria

sap

wildflower

Snow-on-the-mountain 

Euphorbia

sap field

plant

Sorghum

Sorghum

 leaves

grass

Star of Bethlehem  

Ornithogalum

entire plant

wildflower

Velvet Grass 

Holcus lanatus

leaves

grass

Wild Black Cherry  

Prunus serotina

leaves, pits

tree

Wild Radish

Raphanus raphanistrum

seeds

wildflower

Wisteria  

Wisteria

pods, seeds

ornamental plant

Wolfberry  

Lycium barbarum

leaves, shoots

ornamental vine

Woody Aster  

Aster venustus

entire plant

wildflower

Yellow Jessamine 

Gelsemium sempervirens

entire plant

ornamental vine

Yellow Oleander  

Thevetia peruviana

entire plant esp. leaves

garden plant

Yellow Pine Flax 

Linum neomexicanum

entire plant esp. seedpods

wildflower

Yew 

Taxus

bark, leaves, seeds

ornamental tree