Within the late afternoon (close to 4 to 5 PM), it is possible to typically see locals harvesting and drying the leaves with the roadside. These leaves are used to make roofs and parasols, like those you see within the Beach front. It’s a conventional chinese medicine recipe I think, https://hoi-in-an26047.blogdeazar.com/37978861/5-simple-statements-about-hoi-thiet-ke-explained