It's amazing how plants within the same genus can look so dramatically different. Case in point, peperomias are popular house plants because they generally are easy to grow. They prefer well-lighted rooms, higher humidity, and drier feet, and that's sort of where the similarities end. Peperomia Luna Grey has rounded, almost rippled looking leaves and a greyish cast. Compare that to its cousin, Baby Rubber Plant (Peperomia obtusifolia) with its thick, round bright green foliage, and they look nothing alike. In fact, those two peperomias planted with the variegated baby rubber plant would look smashing together. Something to consider!