I have been reading about hiding plants of which many of the plants I read about I have used (i.e. tomato) to mask my garden. But one other that usually works best is attaching cheap plastic flowers to the plants. Don't use large exciting flowers they attract too much attention, the more common the better. Also it works best if the flowers are small. I usually get my best selection from the dumpsters in cemeteries. They are free and there is a good selection of mundane flowers. I keep them in a box and change them throughout the summer then store them for next season.