Calathea Orbifolia AKA: Calathea Rotundifolia… Calathea Orbifolia is the plant that will make you turn and look at it for the second time- although it almost and always is love at first sight. With its oversized circular leaves striped with silver its not just exquisite beauty but also an excellent air purifier. Light: As with most variegated plants, Calathea need plenty of diffused light. … Water: Calathea must be kept in damp soil at all times, but definitely do not allow the plant to sit in water or in very wet soil.