Embryogenic callus of Leucojum aestivum was transferred to solid and liquid media in bioreactor RITA? vessels. Callus growth on the liquid medium enriched with 2 and 5 M Picloram and 0.5 M BA was characterized by a higher multiplication index. The greatest number of somatic embryos was observed on the callus multiplied in bioreactor using 5-minute flushing with the medium. Globular embryos developed into torpedo-stage embryos and plantlets under the influence of NAA (0.5 M) and zeatin (5 M). Liquid medium promoted the development of L. aestivum somatic embryos and plantlets.