A truly outstanding Hydrangea serrata . Standing out notably in our field and container trials for its outstanding reblooming ability, Tuff Stuff Ah-Ha ® mountain hydrangea, the newest member of the series, has massive dinner plate sized blooms. Sterile florets are doubled and waterlily-like, taking on outstanding pink or blue coloration depending on soil conditions. Like all H. serrata , it has outstanding bud hardiness. Prepare to be impressed!