The aim of this paper is to provide evidence for three themes related to ‘botanical bosom serpents’, i.e. stories about plants growing in and on bodies. First, the sprouting of flowers from the body in medieval Christian tales, to be contrasted to ‘bottom flowers’ attested in Dutch profane paintings produced in the later Middle-Ages; second, the presence of botanical bosom serpent narratives in Japan; and, third, the topic of plants growing in, and on animals in oral traditions and works of natural history.