I have had this plant now for FIVE years and it has never bloomed, not once. I moved it two years ago, although it was getting 6-7 hours of sun to the front where it now gets 8 or more and it still has not bloomed. The soil is just regular, I have bee balm, cosmos, sweetpeas, morning glories, and more growing all around it. I have tried fertilizing and not fertilizing. I finally bought another one, different color, I though maybe it had to have a mate ? i don't know, it just won't bloom. Any great ideas? I should add that it is huge plant by now, ten feet and over, full, bushy, green and just beautiful, but I want some "flowers" Would love some advice.