Go to a store where they sell hunting stuff and purchase some wolf or coyote urin.Then, make a perimeter around your spot by spaying the surounding trees with the urin.(you can also add soap and/or mite balls) After that, I suggest you also use metal wire to make a fence by setting a wire at diferent heights using trees as posts. If you want you can also use chicken wire for your fence. It is harder to hide but it will definetly keep rodents away from your spot as well.Try to put your perimeter a couple of feet away from your spot so the bucks don't munch on your plants by leaning over your fence.(if they happen to be courageous enough to get passed the smells and go near your babies).