Have you seen these trees blooming?  Maybe you have smelled them, especially early in the day when the air is heavy.  I usually smell them first, then look around to see if there are Sourwood trees close by.  It's a very distinctive scent.

 

It is Sourwood, Oxydendrum arboreum, and is quite common in our woods.  They are small trees, growing 30-60 feet tall, and blooming now.  

 

Look around, you will probably see a few on your walks or drives.

 

HAPPY GARDENING!!!