There are 4 species included in this genus which is native to Japan, Korea, China and other parts of Asia. It was named by Asa Gray in honor of U.S. Admiral, John Rodgers.

These herbaceous perennials add a moderately coarse texture to the design so they work well as a transition plant in hosta gardens. Many of the species have attractive flowers which are also noted for their pleasant fragrance.

Copyright © 2000 -