“Do you think plants could have souls? That we might even be able to talk to them?” 　　For a whole summer, 17-year-old Florencia has to look after her brother, who is trapped in a persistent vegetative state. She washes him, changes his nappies, and cuddles up to him in bed. From time to time she reads to him from a comic called Las Plantas, which is about plant souls that take co...