the.com/hothouse

means A heated glass building for growing plants out of season, or by extension an environment so intensively nurturing that whatever's inside grows fast — sometimes too fast.

from Straightforward Germanic-style compound: 'hot' plus 'house,' first naming the literal glass-and-heat structures gardeners built to coddle tender plants through cold months. The figurative sense — a 'hothouse atmosphere' or 'hothouse talent' — followed naturally once people noticed that anything grown under artificial heat and pressure, including a child prodigy or a tense office, ripens unnaturally fast and sometimes unnaturally fragile.