white dragon knotweed
Persicaria polymorpha (white dragon knotweed) is a shrubby, clump-forming perennial featuring plumes (panicle racemes) of creamy white flowers reminiscent of goat’s beard (Aruncus dioecus).
Its astilbe-like white plumes are popular with butterflies and attractive seed heads that invite birds. Synonymous with and sometimes sold as Polygonum polymorphism. and is native to China and Japan. This knotweed is not invasive and can grow as big as 6 feet tall.
|white dragon knotweed
|4 thru 9
|Full Sun to Part Shade
|Season(s) of interest
|spring, summer, fall, winter
|Height and Spread
|3-6ft x 3-4ft (90-180cm x 90-120cm)
|Rarely Browsed by Mammalian Herbivores
|Not Native to the US Midwest. Native range: Asia.
|Location in Lurie Garden
|Southwest Dark Plate, North Dark Plate