They are frost-tender plants, they can be grown outdoors, but only in warm temperatures, they will need protection of a conservatory or greenhouse in cooler areas. Grow them in humus-rich, well-drained soil, with partial-shade. You can propagate from seeds or cuttings.
Propagation is by seeds in the spring or by semi-ripe cuttings in the summer.
Pests, diseases or disorders
Red spider mites and mealy bugs under glass.