Most flowers are long gone. Most leaves are on the ground in zone 5.
But there is a small tree about 4'-5' tall still with beatiful
white/pink flowers. Hundrend of small buds forms a huge cone at tip of
its every branch. The leaves look like Hydrangeas'. It seems like a
shrub trained to be a tree becasue there are some suckers around its
small trunk.

Could any one name the tree/shrub?