Some plants contain chemicals that are toxic to fish. The fruit, leaves, bark or other parts of the plant that fall into the water can have fatal results. Check out the list below so you know what to avoid.
| Plant Name | Toxic Parts |
|---|---|
| Angel's trumpet (Datura spp.) | All parts |
| Azalea (Rhododendron spp.) | All parts |
| Black walnut (Juglans nigra) | All parts |
| 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 |
| Flowering tobacco (Nicotiana alata) | Leaves |
| Foxglove (Digitalis spp.) | All parts |
| Holly (Ilex spp.) | Berries |
| Horsechestnut (Aesculus spp.) | Nuts, twigs |
| Jack-in-the-pulpit (Arisaema spp.) | All Parts |
| Jasmine (Jasminum spp.) | Berries |
| Juniper (Juniperus virginiana) | All parts |
| Larkspur (Consolida ajacis) | All parts |
| Lily-of-the-valley (Convallaria majalis) | All Parts |
| Mockorange (Philadelphus hybrids) | Fruit |
| Monkshood (Aconitum spp.) | All parts |
| 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.) | All parts |
If you want to learn more about Ponds, check out our article How to get rid of algae in your garden pond
