Question
How do you prune a Rose of Sharon to be bushy and tall, instead of just straight up?  Where do you prune and when?  I live in KY. Thanks

Answer
You can prune the Rose of Sharon after it's blooming has ceased-usually in late fall.  I cut any "mother branches-or big ones that grow from the baseand are 1" in diameter" almost to the ground.  Do not cut more than 3 of these from any one bush.  Then prune bush back in the shape you would like it to grow.  Division branches will grow where you cut so take that into consideration.
 I live in growing zone 5b and prune mine to about 18" in late fall.
 If you have a "double-flowering" Rose of Sharon you can also prune it back if the branches get out of control during the blooming season, but once you see buds it's good not to prune.
Sijka