The research on vegetative growth of olives, which are located at the National Colle-ction of indigenous and domesticated varieties of olives plantation in Vodnjan, whose planting in 2011. was encouraged by Faculty of Agriculture in Zagreb, was done in the beginning of April 2016. The research included measuring trunk diameter and branches length, and also counting the number of the branches of the olive tree. Research was conducted to determine vegetative features of more than 50 different genotypes of olives that have already been producing in the Republic of Croatia or they have already been offered to manufacturers as new creations. Among the researched varieties, there was found the expected vegetative growth. The highest average trunk diameter was measured among the variety number 7; 5.9cm, while the lowest average trunk diameter was measured among the variety number 53; 3cm. The average trunk diameter of all varieties was 4.3cm. The highest average branch length was measured among the variety number 7; 2.246cm, while the lowest average length number 58; 722cm. The average length of branches was 1,276cm. The highest number of branches was counted among the variety number 7; 231 branches, while the lowest average number of branches was counted among the variety number 31; 96 branches. The average number of branched was 164.