The influence of two rootstocks (Prunus cerasifera Ehrh. and Prunus tomentosa Thunb.) on growth, yield and fruit quality of five plum cultivars: 'Herman', 'Opal', 'Cacanska Rana', 'Cacanska Lepotica' and 'Dąbrowicka Prune' was estimated. Seven years after planting, the trees of all the considered cultivars grew more vigorously on P. cerasifera rootstock than the trees on P. tomentosa. The highest yields were harvested from the trees 'Cacanska Lepotica' grafted on P. cerasifera. Productivity of all the cultivars of plum trees on P. tomentosa rootstock was higher than of these grafted on P. cerasifera seedling. The considered rootstocks had no influence on fruit weight of the investigated plum cultivars. 'Cacanska Rana' trees produced the biggest fruit, whereas the smallest were harvested from 'Dąbrowicka Prune' trees.