大花百日草为菊科百日草属一年生草本,喜光、喜温,较喜湿润,能耐一定干旱,性强健,栽培土壤要求疏松、肥沃。土壤瘠薄和过于干旱,将直接影响花朵的数量、花色、花径大小。规模化商品生产的盆栽百日草一般采用种子繁殖,偶有生产者为降低生产成本,采用扦插繁殖。 Large flowers of Zinnia for Asteraceae biennial annual herb, hi light, like warm, hi more moist, able to withstand a certain drought, sexual health, cultivation of soil requirements loose, fertile. Soil infertility and over-drought, will directly affect the number of flowers, color, flower size. Large-scale production of potted Zinnia commonly used seed breeding, occasional producers to reduce production costs, the use of cutting propagation.