They are frost tender, min 15C, and will need a fairly humid atmosphere. Grow them in a shaded position with well drained soil, keep them well watered but avoid waterlogging, especially in the winter. If plant becomes too straggly, cut back in spring.
Propagate in spring or summer, with additional heat, by division or stem cuttings.
Pests, diseases or disorders
Overwatering will cause the leaves to turn yellow.