Try looking at the different types of viburnum.

Hi, I am not positive, but it looks like an oak leaf hydrangea. Compare the plant to those here:

http://www.hydrangeashydrangeas.com/oakleaf.html

Is it fragrant? It looks like a viburnum to me; my oakleaf hydrangea doesn't bloom until much later in the summer, while viburnums bloom late May-late June near me.

Laurel

Looks like a European snowball viburnum to me.

It is a snowball- viburnum for sure.