Hibiscus rosa sinensis in my pot

This is one of my oldest trees, a Chinese rose. It grows strongly this season and needs a good trim, but I don´t want to get rid of so many flower buds. It was repotted into one of my pots.
See previous post:
http://bonsaistrom.blogspot.sk/2012/10/hibiscus-rosa-sinensis-cinska-ruza.html
http://bonsaistrom.blogspot.sk/2014/08/hibiscus-rosa-sinensis.html