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Scientific Name: Dracaena spp. Common Name: Cabbage Tree, Dragon Tree, Corn Plant Thorns/Spines? How is this plant unsafe? How do you plant safely? No If dogs or cats chew on this plant, it can cause vomiting or weakness.
Scientific Name: Echium candicans Common Name: Pride of Madeira Thorns/Spines? How is this plant unsafe? How do you plant safely? No Leaves and stems contain numerous small hairs, which can be irritating and cause dermatitis.
Scientific Name: Erythrina spp. Common Name: Coral Tree Thorns/Spines? How is this plant unsafe? How do you plant safely? No Seeds are poisonous if ingested. Supervise pets and children playing near this plant.
Scientific Name: Eschscholzia californica Common Name: California Poppy Thorns/Spines? How is this plant unsafe? How do you plant safely? No Entire plant is toxic if ingested. Supervise pets and children playing near this plant.
Scientific Name: Euphorbia characias Common Name: Dome Euphorbia, Mediterranean Spurge Thorns/Spines? How is this plant unsafe? How do you plant safely? No Sap is irritating and can be toxic if one gets it on exposed skin such as bare hands or eyes.
Scientific Name: Euphorbia milii Common Name: Crown of Thorns Thorns/Spines? How is this plant unsafe? How do you plant safely? Yes Sap is irritating and can be toxic if one gets it on exposed skin such as bare hands or eyes. It also has spines that may not be obvious.
Scientific Name: Euphorbia myrsinites Common Name: Creeping Spurge Thorns/Spines? How is this plant unsafe? How do you plant safely? No Sap is irritating and can be toxic if one gets it on exposed skin such as bare hands or eyes.
With the longstanding drought facing California, water-wise, sustainable gardening has become very popular. As gardeners remove their thirsty lawns and water-loving plants, they may unknowingly replace them with toxic or harmful plants.
Scientific Name Photo Thorns/ Spines Poisonous Notes 1. Achillea millefolium No In rare cases, yarrow can cause severe allergic skin rashes; prolonged exposure can increase the skin's photosensitivity.
