It is beginning of September in central Europe and I have an hotensia (Hydrangea) which is currently not flowering. It barely survived the last winter, but I am happy that it came back with many leaves which look healthy. The hotensia grew quite a bit over the year, and it turned out that its pot is getting too small since the root-ball is very compact. It was easy to separate the root ball and the pot by simply holding the stems and shaking a bit. For that reasons I took the complete root ball and planted it as a whole into the garden in normal soil.
My question: My neighbor gave me a lecture that this will kill the plant and avoid it from ever flowering again. I seriously doubt that giving the roots more space without disturbing them would have any negative influence on the plant. Who is right - her or me? And why?