In 1992–2001 in the Field Floriculture Research Station the investigations of introductional capacities and vegetative regeneration possibilities of daylilies (Hemerocallis) (7 species and 115 varieties) were carried out. In this paper the results of phenologic investigations, the observations of cultivars’ resistance to negative meteorological factors and diseases are discussed more exhaustively. The results of introduction of the investigated taxa are also presented.
Keywords: Hemerocallidaceae, phenologic, meteorological conditions, introductional capacities.