This study was carried out to determine the root development of the ornamental shrub Cornus alba 'Sibirica' (ornamental cranberry), which is frequently used as an outdoor ornamental plant in urban landscapes and has an economic importance, obtained from Atapark Botanical Garden. Cornus alba 'Sibirica' is a plant belonging to the Cornaceae family and is called as ornamental cranberry or dogwood bush. The study investigated the effects of different bacterial and hormone formulations on the root rooting of this plant. In the study, the effects of the applications on steel rooting were determined by various parameters (number of rooting cuttings (%), root number (number), root length (cm), root thickness (mm) and root quality), and the most suitable biological preparation that can be used in rooting for the specified species was determined. . As a result of the study, the best result in terms of rooting parameters was determined in horman (IBA) application, only in terms of root thickness, the control group (0.90 mm) showed a better improvement than the hormone application (0.84). In addition, all three different bacterial formulations show lower rooting development compared to control and hormone (IBA) applications, while only in terms of root quality, 1st Formulation bacteria (Bacillus megatorium TV-3D, Paenibacillus polymixa TV-12E, Pantoea agglomerate RK-79, Pantoea agglomerate RK -92, Pseudomonas fluoresens FDG-37), while the root thickness was 3.67 mm, this value was 3.00 mm in the control group. The results obtained are very important in determining the root quality and development of the Cornus alba 'Sibirica' plant, which has a very high landscape and economic importance.