Provided are: a method for raising leaf and stem vegetables with which production cost is reduced and leaf and stem vegetables of high commercial value can be produced by irradiating the light necessary for growth on the leaf and stem vegetables efficiently and a light source device for raising leaf and stem vegetables to be used in said growing method. A method for raising leaf and stem vegetables by irradiating light the method being provided with a stem growth inhibiting period for irradiating light from a stem growth inhibiting light source with a high blue component which inhibits stem growth on the top of the stems at least during the initial growth period in which the stem sections and leaf sections can be distinguished.