Okay, I've been reading these and they are all very interesting but I've not found one that pertains to my particular problem. I used to work in a Florist shop, I managed the greenhouse. Well, we would get these beautiful "hot House" Hydrangeas and sometimes they wouldn't sell. So.....I took a couple of these home (5 yrs ago) and planted them. They are the most beautiful plants in my garden but nary a bloom on them. Never have bloomed since they were in the greenhouse. Is this because they were "Hot House" grown? Does anyone know about this?????? Thanks in advance!