The petiolaris complex group of sundews are some of the most interesting of genus. Drosera darwinensis seems to be the most closely related to Drosera falconeri of the petiolaris complex group. It had moderately thick petioles connected to large circular traps. Under strong light, the traps color up red. During winter, traps are less brightly colored for us.
The plants are from the Northern Territory in Australia and prefer hot temperatures, lots of light and high humidity. In their habitat they experience 6 months of dry dormancy and 6 months of wet growing season; however, we have found that if kept wet they will grow year around. We recommend growing all petiolaris complex drosera in a mix of half peat to half perlite. They should be kept warm (over 70 degrees) and the photoperiod should be kept at a constant 12-14 hours. If exposed to a longer photoperiod, dormancy may be induced.