Rare

As far as I know there is nothing rare about the type of this hydrangea 
 What makes it unusual is that it is still alive.  I have friends who could probably plant a matchstick and have it grow into a tree. I am not like that and keeping plants alive is usually my limit.  However this one was nearly dead and a terrible shape when we bought it.  It is my first  example of restoring a plant to health - so rare indeed!