Introduction Chrysanthemums are one of the oldest fl owering plants, which not only haven’t lost their importance in our days, but also take the second place in the world production of fl ower producing. As a result of centuries breeding work derived a huge number of varieties of chrysanthemums, which are different form infl orescences, their color, size and number, shape and height of the bush, the terms and period of fl owering. Great diversity of chrysanthemums sorts, numbering tens of thousands of denominations, gives us the opportunity to choose an interesting and decorative assortment. However, the sort is not stable and may change signifi cantly when is moving to different geographical and environmental conditions. Unstudied the biological peculiarities of the sorts, not knowing the adaptive characteristics and its requirements to environmental factors, culture cultivation, often lead to lower quality and decorativeness of plants. In connection with, the chrysanthemums introduction for fl oriculture laboratory staff is of great interest from the point of enrichment fund collection. Sort’s study of introduced plants, improvement and using of taxa, perspective for national production, is the aim of our scientifi c work. Material and methods As a biological material 10 chrysanthemum sorts, introduced from Poland and Holland served. The investigations according following methods were carried out, so State variety testing of agricultural crops (1968) and after K. Dvorianinova (1982). Results and discussions Beginning with 1954 year, concomitantly with collection foundation, the staff of the laboratory began the chrysanthemums introduction. Then were collected the sorts existent in our republic, national and foreign sort’s selection from Kiev, Yalta and Sukhumi were imported. Since the end of 90s years the overall environmental situation worsened, dry periods increased considerably, the temperature in the spring and summer months increased. Abnormal heat, a small amount, and often the lack of rainfall during the period of vegetative growth and reproductive development of chrysanthemums could not but affect the state of the plant. Many varieties were lost, and some of it simply disappeared. Taking into account the environmental aspects and, in connection with changes of the trends in fl oriculture, it became necessary of updating the collection and enrich of it with new varieties more decorative and resistant under the conditions of urbanization. During the period from 2010-2013 years in the collection about 20 modern chrysanthemums sorts, imported from Poland and Holland were introduced. We carried out the phenological observations, morpho-biological and adaptive peculiarities of these varieties to new growing conditions were studied. Conclusions According the results of researches for the most of chrysanthemums sorts studied, the rhythms of their development correspond to annual changes in climate it was established. In the conditions of our republic the introduced chrysanthemum go through all phases of development, abundant and continuously bloom, that allows us to remark on their successfully adaptation to the new conditions, and this is an indicator of great chrysanthemum biodiversity and perspectivity to be used in landscape gardening.