In winter, Sarracenia need cool conditions, with temperatures close to freezing. This "cooling off" dormancy period extends from Dec. to Feb., and is important to give the plant a rest. During this time, most Sarracenia will produce "Winter Leaves", called Phyllodia. These are flat, blade-like leaves without the carnivorous pitcher shape, allowing photosynthesis, so the plant can store up energy in its rhizome in the ground. In spring, a mature plant will burst fourth with flowers and a fresh crop of pitchers.
Sarrs need a dormancy, otherwise they will eventually grow themselves to death. Short daylight hours in combination with less water will keep the plant dormant. Terrarium growers must also give their Sarrs a rest period. Feel free to PM us with any other culture questions.