Product review for Harlequin Hydrangea Overall Rating: Write an online review and share your thoughts with other customers Sort Reviews: Newest | Oldest | Highest Rating | Lowest Rating   :: Viewing page 1 of 1  -  Sunday, October 25, 2009 Hydrangea Harlequin Reviewed By: Henry Ross (Strongsville, Ohio) Incredible Fall color. Unbelievably beautiful flower color with gigantic heads which lose the white edge as they age.