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Thread: Plants Poisonous to Koi

  1. #1
    Tategoi
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    Plants Poisonous to Koi

    Can anyone refer me to a list (if it exists) of plants poisonous to koi which should not be planted anywhere near a pond?

    I am planning my greenhouse pond and want to avoid preventable mistakes.....
    ChrisC

  2. #2
    Oyagoi woodyaht's Avatar
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    Toxic Plants

    One pollutant area that is often overlooked by pond keepers has to do with the plants in the pond or those that are part of the landscaping around (and over) the pond. The seeds of most plants can swell and plug up the digestive tract of the Koi. A partial list of the plants or parts of plants that have been reported as having some toxicity to Koi (and pets and people) for various reasons include:

    Amaryllis - bulbs

    Baneberry - berries, roots

    Bird of Paradise - seeds

    Black Locust Bark - sprouts, foliage

    Boxwood - leaves, stems

    Buttercup - sap, leaves

    Calla Lily - leaves

    Cherry - bark, twigs, leaves, pits

    Coral Plant - seeds

    Daffodil - bulbs

    Datura - berries

    Death Camas - all parts

    Eggplant - all but fruit

    Elephants Ear - leaves, stem

    English Ivy - berries

    Foxglove - leaves, seeds

    Hemlock - all parts

    Holly - berries

    Hyacinth - bulbs

    Indian Turnip - all parts

    Iris - bulbs

    Jasamine - berries

    Java Bean - uncooked bean

    Lantana - immature berries

    Laurel - all parts

    Locoweed - all parts

    Marijuana - all parts

    Mayapple - all parts

    Mistletoe - berries

    Mock Orange - fruit

    Morning Glory - all parts

    Narcissus - bulbs

    Oak - acorns, foliage

    Pine - sap

    Poinsettia - leaves, flowers

    Potato - eyes, new roots

    Privet - berries, leaves

    Prunus varieties - seeds, some

    Redwood - sap (from decks also)

    Rhubarb - leaves

    Ranunculus - all parts parts

    Snapdragon - all parts

    Snowdrop - all parts

    Tiger Lily - all parts

    Tomato - leaves



    Tulip - bulbs



  3. #3
    Oyagoi woodyaht's Avatar
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    ACOKANTHERA fruit & flowers
    ACONITUM (Aconite, Monkshood) roots, flowers, & leaves
    ANENOME (Wildflower) all parts
    AMARYLLIS (A. Belladonna) bulbs contain alkaloids
    ANGEL TRUMPET TREE (Datura Arborea) flowers & leaves
    APPLE (See Cherry Laurel)APRICOT (See Cherry Laurel)
    ATROPA BELLADONNA all parts, especially black berries
    AUTUMN CROCUS (C. Sativus, Saffron Crocus) bulbs
    AZALEAS (Rhododendorn) all parts can be fatal
    BANEBERRY (Actaea, Doll's Eyes) red or white berries, roots & foliage
    BEACH PEA (Lathyrus Maritimus) stems
    BETEL NUT PALM all parts
    BIRD OF PARADISE BUSH (Caesalpinia) seeds
    BITTERSWEET (Celastrus) berries
    BLACK LOCUST (Robinia Pseudoacacia) bark, sprouts, & foliage are poisonous
    BLEEDING HEART (Dicentra, Dutchman's Breeches) foliage & roots
    BLUEBONNETS (Lupinus) all parts
    BOTTLEBRUSH (Callistemon, possibly Melaleuca) flowers
    BOXWOOD (Buxus Sempervirens) all parts
    BUCKEYE (Aesculus, Horse Chestnut) sprouts and nuts
    BUTTERCUP (Ranuculus, Crowfoot) all parts
    CALADIUM all parts
    CALLA LILY (Zantedeschia) leaves
    CAROLINA JESSAMINE (Gelsemium) All parts
    CASTOR BEAN (Ricinus Communis) seeds can be fatal
    CHERRY see Cherry Laurel
    CHERRY LAUREL (Prunus Varieties) all parts, seeds contain hydrocyanic acid
    CHINABERRY (Melia Azedarach) berries are poisonous
    CHRISTMAS BERRY (Heteromeles Arbutifolia, Toyon) berries are poisonous
    COLUMBINE (Aquilegia) all parts
    COMMON PRIVET (Ligustrum) black or blue wax coated berries and leaves
    CORAL BERRY (Symphoricarpos) seeds
    CROCUS all bulbs
    DAPHNE berries can be fatal
    DAFFODIL (Narcissus) bulbs may be fatal
    DATURA (Brugmansia) flowers, berries, & seeds
    DEATH-CAMAS (Sygadenus Venous) all parts poisonous, roots are deadly
    DEADLY NIGHTSHADE (Solanum Nigrum) all parts, unripe fruit & foliage
    DELPHINIUM (Larkspur annual) all parts
    DESTROYING ANGEL (Amanita Phalloides, Death Cup) all parts
    DIEFFENBACHIA (Dumb Cane) all parts, especially the sap
    DOGWOOD (Cornus) fruit slightly poisonous
    EGGPLANT all but fruit
    ELDERBERRY (Sambucus) red fruit poisonous, black & blue fruit o.k.
    ELEPHANT EAR (Colocasia, Taro, Caladium) stem & leaves
    ENGLISH IVY (Hedera Helix) berries
    EUPHORBIA (Splurge, Gopher Plant, Mole Plant) roots, sap
    FALSE HELLEBORE (Veratrun Viride & other species) all parts poisonous, root deadly
    FOXGLOVE (Digitalis Purpurea) all parts can be fatal
    FLY AGARIC (Fly Amanita Mushroom) whole plant
    FOUR O'CLOCK whole plant
    GELSEMIUM (Carolina Jessamine) whole plant
    GOLDEN CHAIN seeds & pods may be fatal
    HELLEBORE (Ranunculaccea) all parts
    HEMLOCK (Tsuga) all parts, especially roots
    HENBANE all parts
    HOLLY (Ilex Aquifolium, Opaca, Vomitoria) leaves & berries
    HORSE CHESTNUT (Aesculus, Buckeye) all parts
    HORSETAIL (Equisetum Hyemale) all partt
    HYACINTH bulbs can be fatat
    HYDRANGEA whole plant
    IMPATIENS (Balsam, Touch-Me-Not, Snapweed) whole plant
    IRIS underground stemt
    IVY (Hedera) all parts
    JACK-IN-THE-PULPIT (Arisaema Triphylla) root is irritant & astringent
    JASMINE, YELLOW all parts
    JERUSALEM CHERRY (Solanum Pseudocapsicum) fruit & leaves
    JESSAMINE (Gelsemium Sempervirens) berries are fatal
    JIMSON WEED (Datura Stramomium, Thorn Apple) all part
    LAMBKILL (Kalmia Angustifolia, Sheep Laurel) leaves
    LANTANA CAMARA (Red Sage) green berries are fatal
    LARKSPUR (Delphinium) foliage & roots are dangerous, seeds may be fatal
    LAUREL (Primus varieties) all parts can be fatal
    LILY (Lilium) some varieties bulbs
    LILY-OF-THE-VALLEY (Convallaria Majalis) all parts
    LOBELIA (Cardinal Flower) all parts
    LOCOWEED (Astragalus, Oxytropis) all parts
    LUPINE (Lupinus) seeds
    MACHINEEL all parts
    MARIJUANA all parts
    MAY APPLE (Podophullum) all parts
    MESCAL (Peyote) all parts
    MILKWEED (Asciepias) all parts, especially sap
    MISTLETOE berries can be fatal
    MOCCASIN FLOWER (Lady Slipper, Cypripedium Spectabiles) all parts
    MOCK ORANGE (Philadelphus) all parts
    MONKSHOOD (Aconitum) foliage & fleshy roots
    MORNING GLORIES (Ipomea) all parts
    MOUNTAIN LAUREL (Kalmia Latifolia) young leaves & shoots, can be fatal
    MUSHROOMS wild types
    NARCISSUS (Daffodil) bulbs can be fatal
    NATAL CHERRY (Solanum) berries
    NICOTIANA (Flowering Tobacco) leaves
    NIGHTSHADE (European Bittersweet, Horse Nettle) all, especially unripe berries
    OAK foliage & acorns
    OLEANDER (Nerium Oleander) All parts poisonous including smoke if burned
    PEACH see Cherry Laurel, seeds
    PEAR see Cherry Laurel, seeds
    PEONY (Paeonia) all parts
    PERIWINKLE (Vinca, Myrtle) whole plant
    PHILODENDREN leaves & sapPINE sap
    PINKS (Sweet William, Carnation, Dianthus) all parts
    PLUM see Cherry Laurel, seeds
    POKEWEED (Phytolacca, Pokeberry) roots are dangerous
    POINSETTIA (Euphorbia Pulcherrima) leaves & sap can be fatal
    POISON IVY (Rhus Radicans) all parts
    POISON OAK (Rhus Diversioba, Rhus Toxicondendron) all parts
    SUMAC (Rhus) all parts
    POPPY (Papaver) all except California Poppy can be dangerous
    POTATO sprouts and foliage can be fatal particularly ornamental varieties
    PRIVET (Ligustrum) leaves & fruit
    PRUNUS (many varieties) seeds, some parts
    RANUNCULUS all parts
    REDWOOD sap
    RHODODENDRON (Azalea) all parts can be fatal
    RHUBARB (Rhenum Rhaponticum) leaves, stems OK for human consumption
    ROSEMARY (Rosemarius Officinalis) leaves of certain varieties are poisonous
    SAGE (Salvia) leaves of certain varieties are poisonous
    SCOTCHBROOM (Cytinsus Scoparious) seeds, invasive
    SENECIO whole plant of some species
    SOLANUM (Nightshade) all, especially some berries
    SNAPDRAGON (Antirrhinum) all parts
    SNOWDROP (Galanthus) all parts
    SQUIRREL CORN (Dicentra Canadensis, Bleeding Heart) all parts
    STRAMONIUM (Jimson Weed, Datura) all parts
    SWEET PEA (Lathyrus) stems
    TANSY (Tanacetum) all parts
    TARO (Colocasia, Elephant's Ear) stem & leaves
    TIGER LILY (Lilium Tigrinum) all parts
    TOADSTOOLS can be fatal
    TOBACCO all parts
    TOMATO foliage & vines
    TULIP (Tulipa) bulbs of some varieties

  4. #4
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    Thanks Wood!
    ChrisC

  5. #5
    Oyagoi bekko's Avatar
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    Darn! Is there anything left?

  6. #6
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    Citrus trees and the orchid collection, and a bunch of bromiliads, I guess!
    ChrisC

  7. #7
    Daihonmei MikeM's Avatar
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    Bumping up for Lapv.

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