|The Joker Series cultivars are compact with medium green leaves, 4 inches long, and bear
1 3/4 inch long, salverform flowers that come in a range of colors, including numerous bicolors, early in the season. Grow in a greenhouse or as a houseplant; or in partial shade in deep, humus-rich, well-drained, moist soil. Tolerates full sun if soil is kept moist. 3 to 4 inches tall, 8 inches wide.