This Polymorpha makes a a big statment in the border, and  needs a lot of room to show off its vase-shaped form, but it does not spread or self-sow like some of its relatives. It blooms close to the ground from June and continues throughout the summer atop 2m tall stems. The large, white, astilbe-like blossoms fade to pink and then reddish-brown as the season comes to a close.  Quite stunning.