In nature, carnivorous plants grow in very poor soil, such as bogs. To make up for what the soil lacks, they catch small insects.
Some carnivorous plants close a trap on the insect – like the Venus flytrap (Dionaea). In some, the insects fall into leaves shaped like a tube – like Sarracenia. And in others, the insects stick to the leaves.
Each type has its own conditions – how much sun, how much water and what happens in winter. You will find each plant's conditions on its page.