How to Make Self Watering Plant Bulbs From Recycled Bottles Food Gardening Network 5 Largest Manufacturing Plants in the World Before you bring home those new blooms, make sure they're pup approved! Many common house plants can be toxic if your dog decides to do a little "taste test." Save this guide for Colocasia 'Black Magic' (Elephant Ear) A striking tropical plant with bold, black and red patterned leaves that make a dramatic statement in any garden. Light: Prefers partial shade to bright, indirect light.