Peperomia Obtusifolia AKA: Baby Rubber plant… The Peperomia Obtusifolia is characterized by its thick, upright stems with glossy, spoon-shaped leaves, which store water. In its natural habit, the plants leaves will shrivel in drought and plump after it rains. The leaves are typically a vibrant green but can also have white-and-green variegation that resembles marbling. Water: Water every 1-2 weeks, allowing the potting soil to dry out between waterings. Expect to water more often when your cactus is in brighter light and less often in lower light. Light: Peperomia plants prefer medium to bright indirect light, but can tolerate low, indirect light. Peperomia plants are not suited for intense, direct sun.