The article is devoted to the introduction and acclimatization of Ligustrum vulgare L. in the Middle Urals since the creation of the collection in 1960. At that time, the average annual temperature was only 1°C and Ligustrum vulgare L. froze, grew again and fruited in favorable years. It was possible to create an introduction population by families, but, nevertheless, in 1998 all plants died from the return of cold weather and frosts. The study of the growth and development of privet has been resumed since 2016. Several geographical samples of seedlings grown without irrigation were studied. It turned out that the sample from Barnaul turned out to be the best in all indicators, close values of growth and development of plants from seeds from Samara, and the worst indicators of plants from seeds obtained from Kazan. Average values were noted in Ligustrum ibota (Kaliningrad reproduction), while agrotechnical care (watering and weeding) revealed the maximum height in a sample from Penza.

The created collections of woody plants made it possible to evaluate the life cycle of forsythia Forsythia ovata Nakai, privet Ligustrum vulgare L., and high ash Fraxinus excelsior L. of the Oleaceae Hoff family. et Link. and their response to changing climatic conditions. Tall ash, common privet froze every year to the level of snow cover. The flower buds of the forsythia froze, and it did not bloom. Due to the increase in the average annual temperature from 1.7 °C to 2.69 °C since 1990, forsythia and privet began to bloom and bear fruit. Introductory populations were created and the most frost-resistant and abundantly flowering individuals were selected. But as a result of abnormal weather conditions and climate cyclicality, all young and old privet plants died in 1998. Common privet plants began to bloom profusely only in 2021 (sowing in 2018). High ash plants fully recovered and reached a height of 10-12 m.

The article is devoted to the study of the growth and development of Syringa species in the collection of the Botanical Garden of the Ural Branch of the Russian Academy of Sciences. Heights of Syringa L. of the Villosae section in various geographical areas are given. Growth indicators of seven-year-old plants of hairy lilac in 7 species were studied. The heights, volume and area of the crown projection were measured, the number of formation shoots (skeletal branches), the number of generative shoots and branching shoots of the 1st order were calculated, and the length and diameter of branching shoots were measured. Differences between the studied species are already significant at an early age. The best indicators were found in S. sweginzowii Koehne et Lingelsh. (h-1.51 m, number of branching shoots 218, generative shoots - 28); S. Henry Schneid. – 1.43; 193; nine; S. villosa Vahl. – 1.36; 140; 17; S. tomentella Bur. et Franch. – 1.33; 159; 13; S. komarovii Schneid. - 1.07; 133; 10; S. velutina Komar. – 1.25; 119; eleven; S. wolfii Schneid. – 1.15; 23; 8. The beginning of flowering was noted at the age of 5 in S. sweginzowii, other species from