Lettuce, for example, normally needs 40 days to reach maturity but with water culture, the time is cut to less than three weeks.
根據鳳山分所的經驗，無土種出來的蔬菜，約比土耕種的時間快一半，收穫量多三至五倍。以萵苣為例，一般萵苣要四十天才能採收，無土栽培只要廿天就可摘食。寶島夏季高溫多濕，溫室種植最大的困難，在使室溫降低。