Introduction of grassy and woody ornamental plants in the conditions of middle taiga in Komi Republic

Results of studying the biomorphological features of plants of genus complexes Phlox L and Sorbus L. are presented in article. Dynamics of formation of Phlox paniculata collection has been tracked in detail. Periods in a phase of blossoming of its different sorts depending on weather conditions of the vegetative period have been established. The factors influencing growth and development of sorts of Ph. paniculata have been examined, ways of their re- production have been studied.