I have a question about my azelieas. I planted these in the summer of 2011. They did good that year and grew nicely the summer of 2012. This year we had a slow start to spring, cold and wet. Now, early Aug., they seem healthy but they have alot of branches that never bloomed. They do have buds now, too. And they just aren't growing as tall as I had hoped. My question: am I supposed to cut them back in spring or fall or are they supposed to rebloom on the existing branches? Help, I really love these bushes but I need them to cover that fenceline. Thanks so much.