Wheatgrass is grown from sprouting wheat, then growing it into grass in a tray. Once it has grown 3 or 4 inches tall, you cut it and make juice out of it. If you go to http://www.wheatgrasskits.com
it will explain how to grow it.
2.) If the Budwig diet has had success, then I would not consider it worthless - it is just not the way I would personally go to treat this type of problem.
3.) If this were my mother - I would leave the decision on whether or not to do the surgery up to her - it is her life. If this were something I was personally dealing with, I would not opt for the surgery.