Similar in appearance to hydrangea 39annabelle39 recent breeding has brought us the new improved hydrangea arborescens 39strong annabelle39 which has better wind resistance thanks to its compact habit and strong stems33 the huge white pom45pom flower heads are well supported for reduced flopping and create an impressive garden display from midsummer through to autumn thriving in sun or semi45shade this sevenbark is excellent for cottage garden borders woodland gardens