Mulching is probably not needed in USDA zones 7 and above. If greenhoused, put near a cold wall. Sarracenia go dormant and do best with a cold dormancy of two to four months. Remove thick mulches in the spring or when new growth appears. Trimming dead leaves is easier in Feb.-March, before new growth begins.
Containers are the easiest way to enjoy Sarracenia.
You can sink plastic pots, laundry tubs or even wading pools into the ground or you can line a hole with plastic film. In any case,we recommend drain holes or slits in the bottom to discourage stagnant soil. Plastic containers reduce watering needs by preventing the surrounding soil from pulling moisture away from the peat mix. Bog Gardens are also good as long as the spot is sunny. Most larger Sarracenia need a depth of about 12-16 inches and spacing between the plants of about 12 inches.