Hardy Lily, Asiatic 'Navona' Degroot Not all greenery is as harmless as it looks! From common houseplants to spring garden favorites, many can cause anything from mild stomach upset to more serious reactions in dogs. And if Are snake plants toxic to dogs? How toxic are they? Can they be left outside? The very reason why I grow succulents and cacti.their impressive flowers! This is the starfish or carrion cactus (Orbea variegata), native of South Africa. Philodendron erubescens (Blushing philodendron) Repotting a spider plant When & how