Buddleja butterfly bush? Be careful pruning it down. I followed Monty's advice and cut mine right back to the ground and it was two years before I saw any blooms again. It might depend on what type it is; my full size ones are all "wild" things I got as pass-alongs.
Lilacs? I'm having trouble here with my admittedly ancient lilacs. They look terrible. Another big main trunk rotted off and fell over last month. Are you seeing any problems?
