This picture doesn't show clearly the problem in this flower bed. It is a nice bed of azalea plants (about 3 1/2 feet tall) that has a number of unwanted trees (they're the scraggly lookings things on the top) growing up through the bushes. I keep clipping the trees back but that only makes them come back thicker. I've tried to dig them out but many are lodged up against the azalea roots and others I just can't get to. This is an annoying problem that I have to keep addressing, and as you can see by the photo I haven't addressed it in quite some time. Any suggestions on how to rid this bed, once and for all, of these unwanted trees would be greatly appreciated. Many thanks!
Update on friend's surgery
14 hours ago