I happen to live in the South Eastern USA in a very flat low wet area. One method I use to grow here is this: I dig a circular ditch around where I am going to place my plants. I use the dirt to build a mound in the center to elevate my plants. To keep them from flooding, before the rainy season, I dig a drainage ditch away from the site. The dirt I remove from the ditch I transport back to the grow mound via a wheelbarrow. After completion I camoflage the ditches with dead limbs leaves etc. I've never seen anybody out in my private swamp. The mosquitos and briars are a great deterent for humans. Snakes would also be a great protector but I think the alligators are eating up most of the snakes. A little extra effort goes a long way in acheiving satisfaction. My secret garden is thriving. I hope this helps somebody.