Following text has been copied from the .flow wiki's page Plant Labyrinth.
Plant Labyrinth is an area just like the Plant Labyrinth (Past) but it differs in that that there aren't any children here and that most of the plants here are either ferns or resemble carnivorous plants
Behind you, the path is blocked by the flower girl and, to access a blocked path, you have to kill her.
Going deeper into this area will lead you to Gas Mask Effect and another area that differs slightly in color.
- There aren't any children in this area but, when you make your way to the well, you'll encounter the Flower Girl hiding some vines