How to turn black currant shrubs into high-yield berry treesBlack currants often grow aggressively, turning shrubs into dense thickets where berries remain small and only develop on the outer edges. To prevent this, gardeners can use a pruning method attributed to Oktyabrina Ganichkina, which transforms chaotic growth into structured "berry trees." Pruning and Formation Guide Sequential steps for transforming a black currant bush into a productive "tree" structure. Initial Selection Select 3–4 of the strongest root shoots and cut all remaining ballast completely at the base without leaving stumps. Wood Renewal Identify and remove branches older than 5 years to stimulate the growth of new fruit-bearing wood.