The scalloped, silver-edged leaves of gold and silver chrysanthemum are the perfect foil for the bright yellow, button-like flowers that bloom in fall. This hardy plant will grow to 1 foot in height and will slowly spread by rhizomes up to 4 feet in width. The flowers lack the sterile flowers (ray florets) seen on members of most of the ornamental mums. The yellow button is actually composed of hundreds of small, yellow, fertile flowers. Gold and silver chrysanthemum, native to Japan, was first marketed in the 1980s as Chrysanthemum pacificum, then placed in its own genus Ajania. Now it appears that it is being shifted to the genus Dendranthema.