Watch Free Online HD Moviesjoy. Mala Hierba is a documentary about a country, a people and a miracle crop, hemp, which lies at the heart of the sustainability movement in fashion. London-based director Adriana Roslin takes us on a jounrey revealing how hemp is harvested by local women living in Nepal's mountain villages to when it's spun, processed, dyed and sold as clothing in Kathmandu or around the world.