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Designing a garden around a pond or water feature involves more than using plants that thrive in those types of conditions. If you have fish in your pond, plant choices are even more important. Your fish may appreciate the shade cast from plants and trees. But if the leaves, fruit or bark of some plants containing toxic chemicals should fall into the water, they can poison the fish. For pondside plantings, here are some plants to avoid and which parts are toxic to fish:
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| Plant Name |
Toxic Parts |
Azalea Rhododendron spp. |
Leaves |
Black walnut Juglans nigra |
Leaves, hulls |
Bleeding heart Dicentra spp. |
Leaves, roots |
Caladium Caladium spp. |
All Parts |
Castor bean Ricinus communis |
Seeds, leaves |
Chokecherry/Cherry Prunus spp. |
All Parts |
Climbing nightshade Solanum dulcamara |
All Parts |
Daphne Daphne spp. |
Berries |
Brugmansia
Datura spp. |
Flowers, berries, seeds |
Flowering tobacco Nicotiana alata |
Leaves |
Foxglove Digitalis spp. |
Leaves, seeds |
Holly Ilex spp. |
Berries |
Horsechestnut Aesculus spp. |
Nuts, twigs |
Jack-in-the-pulpit Arisaema spp. |
All Parts |
Jasmine Jasminum spp. |
Berries |
Juniper Juniperus virginiana |
Needles, stems, berries |
Larkspur Consolida ajacis |
Foliage, seeds |
Lily-of-the-valley Convallaria majalis |
All Parts |
Mockorange Philadelphus hybrids |
Fruit |
Monkshood Aconitum spp. |
Roots, flowers, leaves |
Morning glory
Ipomoea spp. |
All Parts |
Peony Paeonia spp. |
All Parts |
Pinks Dianthus spp. |
All Parts |
Ponderosa pine Pinus ponderosa |
Sap |
Red maple Acer rubrum |
Leaves |
Snapdragon Antirrhinum spp. |
All Parts |
Sweet pea, everlasting pea Lathyrus spp. |
Seeds, fruits |
Tomato Lycopersicon esculentum |
Foliage, stems |
White snakeroot Eupatorium rugosum |
All Parts |
Wisteria Wisteria spp. |
All Parts |
Yew Taxus spp. |
Needles, seeds |
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