There are early and mid-blooming shrubs and small trees as well. I'll be back when I can recall their names!
Viburnum?
Lilacs...maybe
Deutzia?
Magnolia?
Mock Orange?
Oh, my gosh! What the heck is that one I'm thinking of!!!!??? A partial cultivar name of Wineberry something or other is the only thing that's coming up right now!
A very pretty late spring shrub...