The following is a list of plants (by their common names) that are poisonous and should be avoided. Plants that are known to be extremely toxic are in printed in bold.  Download Pdf  to keep a copy handy

A               
Acokanthera
Aconite (also called Monkshood, Wolfsbane)
Acorns
Alfalfa (also called Lucerne)
Almond Pits
Alocasia
Aloe Vera (also called Burn Plant) – sap, if ingested
Amaryllis (also called Naked Lady)
Angel’s Trumpet (also called Chalice Vine, Datura, Trumpet Vine)
Angel’s Wings (also called Elephant’s Ear)
Apple – seeds
Apricot – seeds
Arrow Grass
Asparagus Fern
Autumn Crocus (also called Crocus)
Avocado – fruit and pit
Azalea (also called Rhododendron)

B
Baby’s Breath
Balsam Pear
Baneberry (also called Doll’s Eye)
Bayonet
Bear Grass
Beech
Belladonna
Bird of Paradise
Bittersweet (also called Bitter Nightshade, Climbing Nightshade, European Bittersweet)
Black Cherry
Black-Eyed Susan
Black Locust
Black Nightshade (also called Common Nightshade, Nightshade)
Bleeding Heart
Bloodroot
Bluebonnet (also called Lupine, Quaker Bonnets)
Boston Ivy
Box
Boxwood
Buckeye (also called Ohio Buckeye, Horse Chestnut)
Burning Bush
Buttercup (also called Crowfoot)

C
Caladium
Calla Lily
Candelabra Cactus (also called False Cactus)
Carolina Jessamine (also called Yellow Jessamine, Yellow Jasmine)
Castor Bean (also called Castor Oil)
Ceriman (also called Cut-Leaf Philodendron, Fruit Salad Plant, Mexican Breadfruit)
Charming Dieffenbachia
Cherry (also called Bitter Cherry, Pin Cherry, Wild Black Cherry)
Cherry Laurel
Chinaberry Tree
Chokecherry
Christmas Rose
Chrysanthemum (also called Feverfew, Mum)
Clematis
Coral Tree
Coriaria
Cornflower
Corydalis
Crocus (also called Autumn Crocus)
Croton (also called Hogwart)
Crown of Thorns
Cyclamen

D
Daffodil (also called Jonquil, Narcissus)
Daphne
Datura
Deadly Nightshade (also called Belladonna, Black Nightshade, Common Nightshade)
Death Camas (also called Amanita)
Delphinium
Dicentrea
Dieffenbachia
Dracaena Palm
Dragon Cane
Dumbcane (also called Aroids)

E
Easter Lily
Eggplant
Elaine
Elderberry
Elephant’s Ear (also called Angel’s Wings)
Emerald Feather (also called Emerald Fern)
English Ivy
English Yew (also called Yew)
Eucalyptus
Euonymus
Evergreen

F
Ferns
Fiddle Leaf Fig
Flax
Florida Beauty
Four O’Clock
Foxglove
Fruit Salad Plant (also called Ceriman, Cut-Leaf Philodendron, Mexican Breadfruit)

G
Geranium
German Ivy
Glacier Ivy
Glory Lily
Golden Chain (also called Laburnum)
Golden Glow
Golden Pothos (also called Devil’s Ivy, Pothos)
Gopher Purge
Grapes

H
Hahn’s Self-Branching Ivy
Heavenly Bamboo
Hellebore
Hemlock (also called Poison Hemlock, Water Hemlock)
Henbane (also called Black Henbane)
Holly
Honeysuckle
Horse Beans
Horse Brush
Horse Chestnuts (also called Buckeye, Ohio Buckeye)
Hurricane Plant
Hyacinth
Hydrangea

 I
Indian Rubber Plant
Indian Tobacco
Iris (also called Blue Flag, Flag, Fleur-de-Lis)
Ivies (all species)

J
Jack-in-the-Pulpit (also called Green Dragon, Indian Turnip)
Jamestown Weed (also called Jimson Weed)
(also called Yew)
Java Beans
Jequirity Bean (also called Crab’s Eye, Precatory Bean, Rosary Pea)
Jerusalem Cherry
Jessamine (also called Chinese Inkberry)
Jimson Weed (also called Jamestown Weed)
Jonquil (also called Daffodil, Narcissus)
Jungle Trumpets

K
Kalanchoe (also called Devil’s Backbone)

L
Lacy Tree Philodendron
Lantana (also called Lantana Camara, Red/Yellow Sage, West Indian Lantana)
Larkspur
Laurel
Lilies (all species)
Lily of the Valley
Lobelia
Locoweed
Lupine (also called Bluebonnet, Quaker Bonnets)

M
Macadamia Nut
Marble Queen
Marigold (also called Marsh Marigold)
Marijuana
Mayapple (also called Mandrake)
Mescal Bean (also called Texas Mountain Laurel)
Mexican Breadfruit (also called Ceriman, Cut-Leaf Philodendron, Fruit Salad Plant)
Mistletoe
Mock Orange
Monkshood (also called Aconite, Wolfsbane)
Moonseed
Morning Glory
Mother-in-Law’s Tongue (also called Snake Plant)
Mountain Laurel (also called Lambkill, Sheep Laurel)
Mushrooms

N
Narcissus (also called Daffodil and Jonquil)
Needle Point Ivy
Nephthytis (also called Arrowhead Vine, Trileaf Wonder)
Nightshade (Black, Common, or Deadly)

O
Oleander
Onion
Oriental Lily

P
Peach – seeds
Pear – seeds
Pencil Cactus
Peony
Periwinkle
Philodendron (also called Schefflera)
Pimpernel
Plum – seeds
Plumosa Fern
Poinciana
Poinsettia (also called Christmas Flower, Christmas Plant, Easter Flower)
Poison Hemlock (also called Hemlock)
Poison Ivy
Poison Oak
Pokeweed (also called Inkberry)
Poppy
Pothos
Potato Plant
Precatory Bean (also called Crab’s Eye, Jequirity Bean, Rosary Pea)
Primrose

R
Red Emerald
Rhododendron (also called Azalea)
Rhubarb (also called Pie Plant)
Ribbon Plant
Rosary Pea (also called Crab’s Eye, Jequirity Bean, Precatory Bean)
Rubber Plant

S
Saddle Leaf Philodendron
Sago Palm
Saint John’s Wort (also called Klamath Weed)
Schefflera (also called Philodendron)
Scindapsus
Scotch Broom
Skunk Cabbage
Snowdrop (also called Nap-at-Noon, Star of Bethlehem)
Snow on the Mountain (also called Ghost Weed)
Spotted Dumb Cane (also called Diffenbachia)
Stagger Weed (also called Bleeding Heart, Dutchman’s Breeches)
Star of Bethlehem (also called Snowdrop, Nap-at-Noon)
String of Pearls
Sweet Pea

T
Tansy Mustard
Taro Vine
Tobacco
Tomato – non-fruit parts
Tree Philodendron
Tulip
Tung Tree
Turnip

V
Vinca Vine
Virginia Creeper

W
Water Hemlock (also called Spotted Cowbane, Spotted Water Hemlock)
Weeping Fig
Wild Black Cherry
Wild Call
Wisteria (also called Chinese Wisteria, Japanese Wisteria)

Y
Yews (American Yew, English Yew, Western Yew)