The jeffersonias have 2 lobed leaves and can be used in partial shade, in rock gardens, or in woodland settings. They need a soil with a pH of 5 to 6 and may be grown in the shade. Plant them in the fall or early spring and divide them in September.
Jeffersonia diphylla--American Twinleaf This is a native plant producing white flowers about an inch across. Set the plants 7 to 10 inches apart then leave them alone once established. They grow 12 inches tall and can be divided in the fall if they really need it.