Poisonous, Non-Edible Flowers

Lobelias, Irises, Calla Lilies, and Other Dangerous Plants

Flower and Berries of Deadly Nightshade

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Some flowers literally look good enough to eat: Nasturtium, borage, violets and other blooms have found their way from vases onto plates at restaurants and even in the homes of adventurous cooks. But there are some flowers that simply must remain decoration, as they're extremely poisonous. And they don't all come with warning names like "deadly nightshade." Irises, calla lilies, sweet peas and potato flowers are all lovely to look at, common decor at weddings or in the garden (or at garden weddings), and completely dangerous if ingested.

This chart is a list of the most commonly-known poisonous plants and flowers to avoid while selecting edible flowers. It is not complete by any means, so just because you do not see it listed here, do not assume it is safe to eat. Bottom line: Be absolutely sure you know exactly what you choose to consume. 

Non-Edible Flowers Chart

Common Name Botanical Name
Aconite (wolfsbane, monkhood) Aconitum spp.
Anemone (windflower) Anemone spp.
Anthurium Anthurium spp.
Atamasco lily Zephyranthes spp.
Autumn crocus Colchicum autumnale
Azalea Azalea spp. (Rhododendron spp.)
Baneberry Actaea spp.
Black locust Robinia pseudo-acacia
Bloodroot Sanguinaria canadensis
Boxwood Buxus spp.
Burning bush (strawberry bush, spindle tree, wahoo) Euonymus spp
Buttercup Ranunculus spp.
Butterfly weed Asclepias spp.
Caladium Caladium spp.
Calla (calla lily) Calla palustris (Zantedeschia aethiopica)
Carolina jasmine (yellow jessamine) Gelsemium sempervirens
Castor bean Ricinus communis
Cherry laurel Prunus caroliniana
Chinaberry (bead tree) Melia azedarach
Christmas rose Helleborus niger
Clematis Clematis spp.
Daffodil Narcissus spp.
Deadly nightshade (belladonna) Atropoa belladona
Death cammas (black snakeroot) Zigadenus spp.
Delphinium (larkspur) Delphinium spp.
Dogbane Apocynum androsaemifolium
Dumbcane Dieffenbachia spp.
Elephant ears Colocasia antiquorum
False hellebore Veratrum viride
Four o'clock Mirabills jalapa
Foxglove Digitalis purpurea
Giant elephant ear Alocasia spp.
Gloriosa lily Glonosa superba
Golden chain tree (laburnum) Labunum anagryroides
Goldenseal Hydrastis canadensis
Heavenly bamboo (nandina) Nandinaa domestica
Henbane (black henbane) Hyoscyamus niger
Horse chestnut (Ohio buckeye) Aesculus spp.
Horse nettle Solanum spp.
Hyacinth Hyacinthus orientalis
Hyacinth bean Dolicbos lab lab
Hydrangea Hydrangea spp.
Iris Iris spp.
Ivy (English ivy) Hedera helix
Jack-in-the-pulpit Arisaemia triphyllum
Jerusalem cherry Solanum pseudocapsicum
Jessamine (jasmine) Cestrum spp.
Jetbead (jetberry) Rhodotypos tetrapetala
Jimson weed Datura spp (Brugmansia spp.)
Jonquil Narcissus spp.
Kentucky coffee tree Gymnocladus dioica
Lantana Lantana camara
Leopard's bane Arnica montana
Lily of the valley Convallaria majalis
Lobelia (cardinal flower, Indian tobacco) Lobelia spp.
Marsh marigold Caltha palustris
May apple (mandrake) Podophyllum peltatum
Mescal bean (Texas mountain laurel, frijo lillo) Sophora secundiflora
Mistletoe Phoradendron spp.
Morning glory Ipomoea violacea
Mountain laurel Kalmia latifolia
Nightshade Solanum spp.
Oleander Nerium oleander
Periwinkle (myrtle, vinca) Vinca spp.
Philodendron Philodendron spp. (Monstera spp.)
Pittosporum Pittosporum spp.
Poison hemlock Conium maculatum
Potato Solanum tuberosum
Privet Ligustrum spp.
Rhododendron Rhododendron spp.
Rock poppy (celandyne) Chelidonium majus
Schefflera Schefflera spp.
Spring adonis Adonis vernalis
Spurge Euphorbia spp.
Star of Bethlehem Ornithogalum umbellatum
Sweet pea Lathyrus spp.
Tobacco Nicotiana tabacum
Trumpet flower (chalice vine) Solandra spp.
Water hemlock Cicuta maculata
Wild cherry (black cherry) Prunus serotina
Wisteria Wisteria spp.
Yellow allamanda Allamanda cathartica
Yellow oleander (tiger apple, be still tree, lucky nut) Thevetia peruviana
Yesterday-today-and-tomorrow Brunfelsia spp.