I think I can add some thoughts here for anyone interested in growing sarracenia. My early experiences growing them resulted in a several deaths but I think I have a good system now for pitcher pants in containers. Much of this has already been said but these plants must have water that is low in desolved solids otherwise the calcium etc. will burn the roots and gradually kill them. In pinch, if you can't get your hands on the appropriate water, tap water can be used (drying out will kill instantly) just over water next time to leach out any salts. If your not sure if your tap water is safe check it with a TDS meter which can be found on amazon. Your goal is for total dissolved solids to be <50. At one time, because I don't have a reverse osmosis system I would buy water by the gallon which is a huge pain. Instead, now, I put a gallon jug under the PVC condensate drain of my HVAC unit. Mine creates >1gallon of water with a TDS <10 daily.
Growing the plants well means mimicking there natural habitat which is tough in containers. They need full sun all day long, but cool roots. So, most of my early failures related to trying to put these plants in small containers. Even sitting in water, small pots in full sun get hot really fast, the stagnant water that you set the pots in also warms up quickly and that results in root damage in plant loss. I also did not like keeping the pots in shallow water because inevitably it fills with leaves, algae etc and just gets gross. So my objective in growing these was to create a self contained system that would meet the plants needs.
At first I just put plants in a big pot with holes about 3/4 up that would allow for a water reservoir. The larger pot should have a more stable temperature and the high water level would keep the peat/sand mix moist. This worked well at first but plants lost vigor over time which I think was related to the water becoming stagnant in the bottom of the pot. So I looked online and found all sorts of crazy bog garden contraptions with stop cocks and such, but I wanted a simple system that just looks like a standard pot. Here is what I came up with. Sorry for the crude drawing.
Basically the U shape is the pot. A PVC pipe extends from the drainage hole in the bottom of the pot. The solid pipe goes up to about 3/4 height of the pot then bends back down. The bottom of the pipe going down is perforated and gravel is used to fill the pot to the top of the perforations. Peat mix (in which the plants are growing) is placed on top of the gravel above the perforations. The result of this configuration is that at maximum capacity there is a water level all the way to the bend in the solid pipe. If water in the pot is filled above this level, water is sucked from the gravel drainage level in the bottom of the pot, and drains out the drain hole. This ensures that water in the pot always stays clean.
Even using large pots, I have measured temperatures >115 at the side wall of the pot after 3 hours in full sun so to get around this, from July - August (North Carolina) I wrap the whole container in Aluminum foil which does a great job of keeping the container cool. The container below I water 1-2 x per week making it one of the easier plants to keep.
Here is a picture of a white topped picture plant, Saracenia Leukophyla "Franklin county A", that has been in a container as above for about 3 years. Picture is not great because it has already moved into my garage for the winter after a few light frosts. There is no size reference but these pitchers are about 2 ft tall and there lids are around 3 inches across.
The pot also contains about 10 yellow fringed orchids which grow great with sarracenia. Photo from wikipedia as I don't have any from this years blooming.
Obviously there are lots of ways to grow these things but this has worked well for me.
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