How do I kill and dig up old holly bushes?
I have two holly bushes on the front of my house. If I had to guess, I'd say they are 30+ years old. When we first moved in, they were growing as tall as the roof line. I cut them WAY back. They were probably 2 feet tall after I hacked them down. I shaped them into triangles thinking I was being 'artsy.' Well these stupid bushes haven't produced the first red berry in the 5 years I've been at this house. I don't trim them very often because I don't have the time and they hurt! Also, the roots choke just about anything else I try to plant in this particular bed. I hate these bushes. What is the point of suffering with hollies if they aren't going to make pretty red berries? I have tried to kill several offshoots of these bushes with Round-Up. The MOST it does is turn the edge of the leaves brown. Sometimes, not even that. So, what would be the easiest way to dig them up. They are foundation plantings, so they are pretty close to my house.
Any help would be appreciated,