EVALUATION OF ORNAMENTAL PERENNIAL PLANTS IN THE SOUTHERN CISURALS

The paper presents research results about the periods of phenological phases passage in Southern Cisurals conditions, about the degree and duration of decorativeness period of perennial introducents. Herbaceous perennials Coreopsis grandiflora and Veronica incana have the longest flowering period. Phlox subulata and Cerastium biebersteinii are characterized by the earliest flowering. Among the flowering shrub plants the paper recorded Philadelphus microphyllus, Philadelphus coronarius, Spiraea japonica, Aflatunia ulmifolia, Hydrangea arborescens, Chaenomeles japonica and Elaeagnus commutat.