well first of do you know how much water is on the ground in the spring ? if you got a wet swamp it's ok as long as you know what to do about keeping plants out of the water till it dries out in july august till harvest time . i use tables at most the swamps i'm in becuase the water is right at ground level and i sink just walking around and it will water log ya roots if you put the plants right on the ground , after the swamps dry up i take and cut the bottoms out of the grow bags and put the plants in a hole in the moss and the roots will go everywhere and the plants never dry out the rest of the summer . we love wet and floating swamps !!