List of Plants Toxic To Pond Fish

A pond can seem incomplete without a few choice plants that give it more color and a natural touch. However, we must be careful what plants we plant in and around our pond, as many of them can be toxic to our fish.

We have created a list of toxic plants that you should avoid planting or remove from your garden before building a pond. For your convenience, the toxic plants for fish are arranged in alphabetical order.

*Images are courtesy of Wikipedia



Aconitum/Wolf’sBane (roots/flowers/leaves)plants toxic to pond fish, aconitum, wolf's bane, plants toxic to koi


Actaea / Baneberriesplants toxic to pond fish, Actaea, Baneberries, plants toxic to koi


Allamanda(all parts)plants toxic to pond fish, allamanda, plants toxic to koi


Allspice (leaves/seeds)plants toxic to pond fish, allspice, plants toxic to koi


Alocasia (leaves/stems) plants toxic to pond fish, Alocasia, plants toxic to koi


Aloe (leaves)plants toxic to pond fish, Aloe, plants toxic to koi


Amaryllis belladonna (bulbs)plants toxic to pond fish, Amaryllis, plants toxic to koi


Anemone (all parts)plants toxic to pond fish, Anemone, plants toxic to koi


Angel’s Trumpet/Datura Arborea (flowers/leaves)plants toxic to pond fish, Angel's Trumpet plants toxic to koi


Anthurium (all parts)plants toxic to pond fish, Anthurium, plants toxic to koi


Atropa Belladonna / Deadly Nightshade (all parts)plants toxic to pond fish, Atropa Belladonna, plants toxic to koi


Autumn Crocus/ Saffron Crocus (bulbs)plants toxic to pond fish, Autumn Crocus, plants toxic to koi


Azalea / Rhododendron (leaves)plants toxic to pond fish, Azalea, Rhododendron, plants toxic to koi


Beach Pea (stems)plants toxic to pond fish, Beach Pea, Lathyrus japonicus, plants toxic to koi


Betel Nut Palm / Areca Palm (all parts)plants toxic to pond fish, Areca Nut Palm, Betel Nut Palm, plants toxic to koi


Bird of Paradise (seeds)plants toxic to pond fish, Bird of Paradise, Strelitzia reginae, plants toxic to koi


Bittersweet / Celastrus (berries)plants toxic to pond fish, Bittersweet, Celastrus, plants toxic to koi


Black Locust / Deciduous tree (all parts)plants toxic to pond fish, Black Locust, Deciduous tree, plants toxic to koi


Bleeding Heart / Dicentra (leaves/roots)plants toxic to pond fish, Bleeding Heart, Dicentra, plants toxic to koi


Bluebonnet / Lupinus (all parts)plants toxic to pond fish, Bluebonnet, Lupinus, plants toxic to koi


Bottlebrush / Melaleuca (flowers)plants toxic to pond fish, Bottlebrush, Melaleuca, plants toxic to koi


Buxus / Boxwood (stems/ leaves)plants toxic to pond fish, Buxus, Boxwood, plants toxic to koi


Buckeye/ Aesculus / Horse Chestnut (nuts/sprouts)plants toxic to pond fish, Buckeye, Aesculus, Horse Chestnut, plants toxic to koi


Buckthorn / Rhamnus (bark)plants toxic to pond fish, Buckthorn, Rhamnus, plants toxic to koi


Buttercup / Spearworts / Water Crowfoots (leaves, sap, bulbs)plants toxic to pond fish, Buttercup, Spearworts, Water Crowfoots , plants toxic to koi

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