I keep my ping's primuliflora, planifolia, and carulea growing in the bog garden right over the water pump outlet, and they are doing well. They are young (15 years old), but seem to prefer a medium drenched in MOVING water. Since I put them in this situation, they have grown like weeds, and produce flowers in abundance. No rots, no fungus', and they eat like pigs. I do prefer to try and copy the growing situation, and I find that circulated RO water seems to do good things for their root development, and overall health. In Apalachicola, the butterworts actually live for a season under water as an aquatic, but the important thing to note is the water is always flowing (slowly) and they just seem to love it. Mine do.