P. gigantea, moranensis, 'Aphrodite', hemiepiphytica, emarginata, moctezumae and a few of the other more southerly growing species are plants which can go without dormancy or do not have a dormancy period. P. gigantea does not go dormant, but does shrink during winter and leaves get thicker, however it still stays carnivorous. P. moranensis as pointed out, has numerous forms of which some will or won't go dormant, and 'Aphrodite' is a hybrid of that species which carries the trait. The others are types which either live in constantly moist areas or in the wild are annuals, and so have no dormant phase.