Hothouse is a 1962 science fiction novel by British writer Brian Aldiss, composed of five novelettes. In the novel, Earth now has one side constantly facing the sun (which is larger and hotter than it is at present) so it has become a veritable hothouse, where plants have filled almost all ecological niches. According to Aldiss' account, the US publisher insisted on the name change so the book would not be placed in the horticulture section in bookshops.