I've had a hydrangea bush for about 3 years now. Got it for my parents for a gift and planted it. Been growing greatly and is a medium sized, full bush but it won't bloom. I dunno if I'm doing anything wrong or not. I have given it Mircale-Gro a few times in the Spring after the frost ended, and we may have had a small late frost (don't remember). Any other advice on trying to get it to bloom or for buying another bush (I do want a second bush for the front of my yard). It wasn't pruned last year (how do you prune one?) but the year before my mother accidently bruned back all the stalks and it did come back a bit stronger. Are some dead leaves/burns at the top, I think mostly from the current heat wave I'm having. if it helps I'm wedged in the middle of Zone 6a-b.