Persicaria polymorpha
Knotweed
           
       
Very bold clump-forming plants covered with showy loose plumes of creamy-white flowers from early summer to fall, similar to those of Aruncus dioicus. Tolerates heat, humidity and drought. Best in sun to part shade in moist area. Good specimen plant at 4-6' tall.

Hardy in zones 4 to 8.


Blooms with creamy white flowers.

Sun Moist Conditions Attracts Butterflies
Part Sun Average Conditions Cut Flower
Shade Dry Conditions Ground Cover