Potentially harmful garden plants
Popular garden plants that can cause poisoning if eaten or are likely to cause skin irritation and allergic reactions:
| Acalypha | irritant; poisonous |
| Acokanthera | poisonous |
| Aconitum | poisonous, irritant |
| Actaea | poisonous, irritant to and via the skin |
| Aesculus | poisonous |
| Aglaonema | poisonous, irritant |
| Agrostemma githago | poisonous |
| Allamanda | poisonous; skin & eye irritant |
| Alocasia | poisonous; skin & eye irritant |
| Aloe | poisonous |
| Alstroemeria | skin irritant |
| Amaryllis belladona | poisonous |
| Anthurium | poisonous; skin & eye irritant |
| Apocynum | poisonous |
| Arisaema | poisonous; skin & eye irritant |
| Arum | poisonous; skin & eye irritant |
| Asparagus | may cause skin allergy, fruits poisonous |
| Atropa | poisonous; skin irritant |
| Brugmansia | poisonous |
| Brunfelsia | poisonous |
| Caladium | poisonous |
| Calla palustris | poisonous; skin & eye irritant |
| Chelidonium majus | poisonous; skin & eye irritant |
| Chrysanthemum | skin irritant |
| Colchicum | poisonous |
| Colocasia esculenta | poisonous; skin & eye irritant |
| Convallaria majalis | poisonous |
| Coriaria | poisonous |
| x Cuprocyparis leylandii | skin irritant |
| Daphne | poisonous; skin irritant |
| Datura | poisonous; skin irritant |
| Delphinium | poisonous |
| Dictamnus | skin irritant |
| Dieffenbachia | poisonous; skin & eye irritant |
| Digitalis | poisonous |
| Dracunculus | poisonous; skin & eye irritant |
| Echium | skin irritant |
| Epipremnum | poisonous; skin & eye irritant |
| Euonymus | somewhat poisonous |
| Euphorbia | poisonous; skin & eye irritant, |
| Ficus benjamina | can cause skin allergy |
| Ficus carica | skin & eye irritant |
| Fremontodendron | - skin & eye irritant |
| Gaultheria | poisonous |
| Gelsemium | poisonous |
| Gloriosa superba | poisonous |
| Hedera | somewhat poisonous; skin irritant |
| Helleborus | poisonous, skin irritant |
| Heracleum mantegazzianum | severe skin irritant in sunlight |
| Hippeastrum (Amaryllis) | poisonous |
| Homeria | poisonous |
| Hyacinthoides (Bluebell) | poisonous |
| Hyacinthus | skin irritant |
| Hyoscyamus | poisonous |
| Hypericum perforatum | poisonous |
| Ipomoea | poisonous |
| Iris | poisonous; skin irritant |
| Kalmia | poisonous |
| Laburnocytisus ‘Adamii’ | poisonous |
| Laburnum | poisonous |
| Lagenaria | poisonous |
| Lantana | poisonous; skin irritant |
| Ligustrum (privet) | poisonous |
| Lobelia (except bedding) | poisonous, skin & eye irritant |
| Lupinus | poisonous |
| Lysichiton | poisonous; skin & eye irritant |
| Mandragora | poisonous |
| Mirabilis | poisonous; skin irritant |
| Monstera deliciosa | poisonous; skin & eye irritant |
| Narcissus | poisonous; skin irritant |
| Nerium oleander | poisonous |
| Nicotiana | poisonous |
| Oenanthe | poisonous |
| Opuntia microdasys | skin irritant |
| Ornithogalum | poisonous; skin irritant |
| Papaver somniferum | poisonous |
| Passiflora caerulea | poisonous |
| Pedilanthus | skin & eye irritant; poisonous |
| Philodendron | poisonous; skin & eye irritant |
| Phytolacca | poisonous; skin irritant |
| Podophyllum | poisonous |
| Polygonatum | poisonous |
| Polyscias | poisonous; skin irritant |
| Primula obconica | skin irritant |
| Prunus laurocerasus | poisonous |
| Prunus lusitanica | seed kernels are poisonous |
| Rhamnus | poisonous; skin irritant |
| Rhaphidophora | poisonous; skin & eye irritant |
| Rhus verniciflua,R. radicans, R. succedanea, R. diversiloba,
R. rydbergii,R. striata, R. toxicarium, R. vernix |
poisonous; severe skin irritant |
| Ricinus communis | poisonous |
| Robinia pseudoacacia | poisonous |
| Ruta | severe skin irritant in bright sunlight |
| Sambucus | poisonous |
| Schefflera | skin irritant |
| Scilla | poisonous |
| Scopolia | poisonous |
| Solandra | poisonous |
| Solanum | poisonous |
| Solanum pseudocapsicum | poisonous |
| Sophora | poisonous |
| Spartium junceum | poisonous |
| Spathiphyllum | poisonous; skin & eye irritant |
| Symphoricarpos | poisonous |
| Symphytum | poisonous |
| Syngonium | poisonous; skin & eye irritant |
| Tabernaemontana | poisonous |
| Taxus | poisonous |
| Thevetia | poisonous; skin irritant |
| Tulipa | skin irritant |
| Veratrum | poisonous |
| Vitex | skin irritant |
| Wisteria | poisonous |
| Xanthosoma | poisonous; skin & eye irritant |
| Zantedeschia | poisonous; skin & irritant eye |
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