You may need to wait for it to bloom as hydrangeas without blooms can be impossible to identify. Then again, so would be a Mini Penny from a regular sized one. The wholesaler may have some notes that can help you (I think Monrovia could help if you contacted them).

http://www.monrovia.com/plant-catalog/plants/1336/mini-penny-hydrangea.php

http://www.hydrangea.com/shopping/pgm-more_information.php?id=2078

This post was edited by luis_pr on Wed, Jun 12, 13 at 10:24

Thank you. It is now blooming.