12 of 12 people found the following review helpful
Enthralled a lifetime hydrangea grower,
This review is from: Encyclopedia of Hydrangeas (Hardcover)
Bought this for my father's 96th birthday. He has grown hydrangea's all his life. He was enthralled, and has hardly stopped talking about the details, even discovered that he has been using the wrong names for varieties that he had grown for many years.
If you want deep knowledge about hydrangeas this seems to be a very good reference.