May 11 This is the bloom of
a Hobblebush (Viburnum alnifolium).
  The
bush is about 4-5 feet tall and the flower heads are about 5
inches in diameter. The showy flowers are sterile. |   |  | Another view of the flowering heads of the hobblebush.  The heart-shaped leaves remind me of seersucker fabric.  |   |  A final photo showing off the highly textured leaves and stark white flowers.
  Photo from  May 12. |   |  
  |