many carnivores are native to cold temperate regions and can be grown outside in a bog garden year-round. most "sarracenia" can tolerate temperatures well below freezing, despite most species being native to the southeastern united states. species of "drosera" and "pinguicula" also tolerate subfreezing temperatures. "nepenthes" species, which are tropical, require temperatures from 20 to 30 °c to thrive.