From the latest breeding this amazing new hydrangea has huge mopheads of pure white flowers held on incredibly strong stems33 similar in appearance to the popular hydrangea 39annabelle39 the stronger stems of hydrangea arborescens 39strong annabelle39 offer improved wind resistance and reduced flopping for a more enjoyable garden display the giant globes of pretty white flowers appear from midsummer through to autumn and make impressive long45lasting cut flowers grow this