Prayer Plant Calathea orbifoliaWhat a lovely sight! The Calathea orbifolia has large leaves with light and dark stripes. A beautiful contrast! The Calathea goes to sleep at night. The leaves will then curl up together. The plant purifies the air, too! Put the plant in partial shade. This jungle plant needs high humidity. That is why we spray the leaves occasionally. This prevents the leaf edges from drying out. Always keep the soil moist, without letting the plant stand in water.