Questions about an item on this list - or questions about any food item - should be directed to the [Food & Water] section as a new topic. This list will be kept updated as unsafe food items are brought to our attention.
The following is copied with permission from the Epicurean-Hermit website, with attributions to Julia Crab. You will need to obtain your own permission from EH to copy this list to your own site or publication. But direct links to this post are OK.
While it is true that crabs are scavengers with a wide repertoire of foods they can eat, there
are many plants and foods that just should not be fed to a crab. The foods on this list are to
be avoided. Some are toxic, some are insect repellents or used as insecticides, and some the crabs
just won't go near, such as lemon -- lemon won't hurt them, but they certainly won't eat it.
This list, like the Edible List, will be updated regularly, so be sure to check back often.
Aconite (Monk's Hood)
African violet leaves
African daisy (Osteospermum)
Alder bark
Aloe vera (interferes with potassium absorption)
Amaryllis
American Hellebore
Anemone/Windflower
Aniseed
Avocado leaves
Azalea/Rhododendron
Bay leaves (natural insect repellent)
Bindweed
Bird of Paradise Flowers
Bluebonnet
Bottlebrush flowers
Bougainvillea
Boxwood
Buckthorn
Buttercup
Carnation leaves
Castor Bean
Catnip
Cherimoya Seeds
Chocolate/cocoa
Chrysanthemum
Cinnamon
Citrus (leaves and branches to be avoided; part of the evergreen family. The fruit is fine)
Columbine
Compost (unless 100% organic)
Crocus
Crown of Thorns
Cube Plant
Custard Apple (young fruit)
Cyclamen
Delphinium
Derris
Dieffenbachia
Dill
Dittany
Eucalyptus
European pennyroyal
Evergreen (pine, cedar, juniper, etc.)
Feverfew
Fleabane
Garlic
Geranium
Golden Pothos
Green hellebore
Hemlock
Holly Berries
Horsetail
Ivy (of any kind)
Juniper Berries
Kalanchoe
Larkspur seed
Laurel
Lavender
Lemon Balm (Sweet Melissa)
Lemon Grass
Lucky Bamboo (Dracaena sanderiana)
Mayweed
Mistletoe
Morning Glory
Mulberry leaves
Oleander
Onion
Oxeye daisy
Papaya seed
Parsley Seed (fruit)
Peace Lily
Pencil Tree Cactus
Peppermint
Philodendron
Pine or cedar wood or needles
Prickly juniper
Pride of China fruit
Prunus species trees (apricot, bitter almond, cherry, cherry laurel,
nectarine, peach, plum) Fleshy fruits are edible, everything else
contains a cyanide-like compound and is fatally toxic, including
seeds, wood, leaves, bark and flowers.
Red Emerald
Rosemary
Sago Palm
Sanseveria
Schefflera
Stargazer Lily (Lilium x Stargazer)
Sweet Flag
Tansy
Tea Tree
Texas Mountain Laurel (Sophora secundiflora)
Thornapple
Thyme
Tobacco
Vanillin
Verbena
Vinca
Wild Angelica fruit
Wormwood
Yew
Yarrow