Aptly named this impressive hydrangea produces incredible flower heads measuring up to 30cm 40123441 across33 hundreds of pretty flowers emerge from mid45summer in a delicate shade of lime green developing to pure snowy white before fading to pale green as they mature unlike many other arborescens varieties hydrangea arborescens 39incrediball39 has strong sturdy stems quite capable of supporting the massive flower heads this fantastic deciduous shrub is perfect as a s