Calathea fasciatahas large circular-shaped leaves that are variegated with darker and lighter green and have purple undersides. s plant after surveying the dark and the light green pattern on the leaves. This is one of the easier Calatheas to grow, so a wonderful choice if you always wanted a Calathea but are worried about keeping it happy. Calatheas are popular house plants because of their variegated leaves and vivid colours. Like other members of themarantaceae family, Calathea raises their leaves in the morning and lowers them at night, giving them the common name, the prayer plant.