Incredible 12" bloom heads are held on stems so strong that drooping is never a problem — even after a rainstorm! A descendant of the beloved classic, Annabelle, it is blessed with stronger stems, and flowers that are bigger and much more numerous. It blooms from early summer until fall, and it blooms on new wood, so you can count on blooms even after very cold winters. Keep evenly moist and prune to 12" in late winter. Hydrangea arborescens 'Abetwo' PP20571.