We see these beautiful Hydrangeas at the Methodist church in Blairsville, across from Meeks Park.  They are magnificent!!!  They were probably planted in 2006 when the MAC was built, making them 14 years old.  They are planted in a huge bank, creating a hedge between parking areas.  It's worth the drive to go see them.  

 

I tried to find the species name for you, but what I learned is that there are 70-75 species of Hydrangeas.  And none of the pix looked exactly like these.  
 

Just go see them in Blairsville;  they are wonderful.

 

HAPPY GARDENING!!!