These are carnivorous plants. They trap flies and other insects into their alluring flower like leaf and then they can't get out because of the sticky enzymes in the long hooded tube. These plants are a lot of fun and VERY hardy. You just need to keep them wet.
This has always been a childhood memory. They still do a great job. Sometimes memories from childhood exceed current reality , but this time it hasn't.
To keep them clean for the show ring. I used to have a show horse and they would inevitably find some manure or something dirty to lay on or roll in minutes before you had to enter the show arena.