Product review for Nikko Blue 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  -  Friday, March 28, 2008 pH Dependent Blooms Reviewed By: Ryon Berry (Brookings, SD) Nikko Blue is one of the better hydrangeas I have found to use in landscapes. Its name is somewhat deceiving though because in soils with a pH higher than 6.5 the blooms are pink instead of blue.  -  Monday, January 21, 2008 Nikko Blues Reviewed By: Loretta (Mt. Rainier, MD) This plant must be a true Nikko Blue... I have never had a Nikko Blue turn pink. First bud are green. As flowers get bigger they turn blue and finally a maroon/mauve color when they die. (Great for dry arrangements)