I miss nasturtiums, they just don't do very well for me in Florida. Your information on their grazing is good stuff. My plans are 4' by 4', 2' high, raised beds with 3' rows between in grass for the G. Pigs. I may or may not put pvc pipes through the beds at ground level for the g pigs to shelter from the heat (and hawks) in. Speaking of hawks, did you have any problems? We lost a few to snakes when kept outside but that was all.