Callestemon or "bottle-brush": prune behind old flower-cones?
This callistemon bush looks as if it has never been pruned to maximise its bushiness (and its flowers). I've taken the photo today.
As soon as the flowers have dropped their red tassels I will be cutting behind them to maximise bushiness (and flowers next year). But I am wondering if I should do the same behind the old flower-cones at the tips of many other branches which have not produced flowers this year.
If I cut behind an old flower-cone will that cut cause 3 or 4 new shoots to sprout, as happens when you cut behind new flower-cones?