Biomorphological features of some generic complexes of ornamental herbaceous plants introduced in the North

In article the results of long-term studying the biological features and processes of reproduction the introduced species and varieties of genus complexes Allium, Astilbe, Hemerocallis, Hyacinthus, Iris, Lilium, Narcissus, Paeonia, Phlox, Primula, Tulipa are summed up. Resulys of ornamental perennials introduction showed success of cultivation in the conditions of European Northeast of the majority of the studied taxons, including rare species.