Cuz AT As a certified country bumpkin, living in the rural South, I have a little experience in the maintaining and reclaiming of old burial grounds. We have used Crossbow and Remedy and a couple of other selective herbicides. The easiest thing to do is spray the briers and small shrubs and after they die off, clean up what ever else you want to be rid of. Get the local Co op "expert" to aid in what is legal and effective in the location that you are cleaning. Using Roundup only opens the door to things you might not want to try and control later. Most areas require a licensed applicator if you pay to have it done. Just get someone to do it without charging and you will be in good shape. The woody plants should have been sprayed just before the first frost for best results but you can get some control if you spray after all the leaves are fully emerged. Once you clear out the ones you want gone, fertilize and introduce the plants that you want to take over. Larry