Mrs. BD loves her Little Lambs. It is a very special paniculata hydrangea.
I have never known anyone who did not enjoy hydrangeas.
Before you mess with hydrangeas, you need to know whether a plant is a macrophylla, oakleaf, arborescens, or a paniculata-type. The handling of each type is different - especially the pruning - and they vary in spring frost hardiness.
A good hydrangea site.