I've got a very small ceramic container with a 25cm diameter and depth of 8cm, hoping to make an outside mini bog garden with 2 or 3 Sarracenia and lots of moss. Is it possible to make a pot bog garden with no drainage holes or will this be too anaerobic for the roots and submerge them too much? I was thinking of using Purpurea and Flava, but are there varieties that cope better with being more submerged in water? Also is it best to line the bottom with stones? I'm very new to carnivorous plants so any advice would be much appreciated!