Introduction Climate changes are more and more obvious and their impact on plants phenology is demonstrated in many situations. For ornamental plants, knowledge of phenology changes determined by climate conditions is very important in the choice of the varieties intended for landscape improvements of parks and public gardens. Roses, in particular, are sensitive to both low and high temperatures, associated with prolonged drought. In this context, we investigated how the roses from the Botanical Garden „Dimitrie Brandza” responded to climate variations during 2010-2013, if there was a signifi cant phenological difference and which were  the most sensitive varieties in particular conditions offered by the Municipality of Bucharest and surroundings. Material and methods There were 10 varieties studied as follows: ‘Abraham Darby’, ‘Acapella’, ‘Angela’, ‘Caprice Meilland’, ‘Christoph Columbus’, ‘Forever Young’, ‘Heritage’, ‘Ingrid Bergman’, ‘Rhapsody in Blue’, ‘Red Berlin’. The main criteria for the choice of varieties were: to be created after 1980 to have a new assortment; to be part of as many groups of fl owering, to have diversity; to have adequate ornamental and biological characteristics, suitability for use in green spaces in Bucharest area. For each variety were conducted observations on a number of fi ve individuals. The main phenophases noted were: burgeoning, leafi ng, budding and fl owering. Climatic data were taken from the INMH-Bucharest Center, time benchmark is 14.00. Results and discussions During the research it was observed that the most sensitive variety and which made a signifi cant difference in the delay of fl owering in 2012 compared to other years, was ‘Rhapsody in Blue’ with an earliness of up to 25 days. The varieties that have registered small differences were: ‘Heritage’, Caprice Meilland’ and ‘Angel’, where the fl owering delays were up to 10 days. These differences appeared following the heatwave in late April 2012, up to 30 °C. The other phenophases showed no signifi cant difference, up to 10 days in the studied years. Conclusions Varieties for which there were recorded small phenophases variations in climatic conditions during 2010-2013 are: ‘Heritage’, ‘Caprice Meilland’, ‘Christoph Columbus’, ‘Ingrid Bergman’ and ‘Angela’. They can be used successfully in the conditions offered by Bucharest and its surroundings. In future, we intend to continue the investigation and the completion of the data obtained until now, to have a more complete picture of the impact that climate changes could have on the varieties of roses grown in Bucharest.