Pruning a leggy rhododendron
hello, I have inherited a very leggy rhodendron which looks like it has never been pruned. It is approx 6 feet high and 4 feet wide but the leaves and flowers are only at the very end of long, woody, bare stems. It flowered in March this year. I have been feeding it throughout the year and would like to try and shape it so it is bushier and has flowers and leaves other than just at the very ends of branches.
If I cut back some of the long branches, there are no green leaves at all except at the ends, will it rejuvenate or will I kill it? What do you recommend for this old, tired rhododendron? Thanks for any suggestions.