West side of a six foot privacy fence. Gets full sun starting around 2pm or so. No morning sun. Watering would be easy. Amended clay soil, decent drainage given the clay. Black dirt prarie.

i want to plant right next to the fence on the west side of it to discourage people jumping my fence, which has been an issue for my neighbors. I wouldnt see these plants as they are on the otherside of my fence.

Im thinking a few knockout roses and texas sages. These do well in the neighborhood so I know they would work.

Want something that possibly may get the force of a city mowing crew or an hoa hired mowing crew. It wouldnt be in the path of a shredder or riding mower due to pitch of the slope where its planted.. But possibly a over zealous weed eater or a bad pruner. I may want to prune them down at some point to fix the fence as well.

How do texas sages and knowckouts take to a "heavy" pruning. Do they get their shape back? I know knockouts need pruning, but im talking about a heavy pruning. I need something bushy and kinda prickly that you generally want to stay away from. I really dont want to do cactus, but I might. Something native-ish to keep with the style of all the native grasses back there. The area is generally unkept with a mowing every year or so.

Any ideas? Wow, that was kinda long.