Darwin’s work on carnivorous plants Darwin’s drawing of rotundifolia Drosera rotundifolia Drosera rotundifolia Drosera capensis Drosera and captured moth Cultivation • • • • • Grow in peat Keep wet with rain water or distilled water Less water in winter, but still damp The alkalinity of tap water kills them They tend to die back in winter Propagation • Drosera often produces side shoots which can be pulled away gently and potted up • It produces copious amounts of seed, which germinate readily Flower of Drosera capensis Dried seed pods Drosera seeds Drosera seedlings D. Capensis and jelly D. Capensis and gelatin Sarracenia with captured insects Dissected pitcher of Sarracenia Dionaea muscipula • Text and images by Leighton Dann