Reduce branches on old shrubs in late winter.
Tie nonproductive branches together and cut the old clump down to the ground with a long-handled lopper. On deciduous varieties, tie target branches before leaves drop. When shrubs grow too big to manage, tie up. Its flowers are also yellow, and appear in spring. This barberry grows slowly and stops at about 12 inches tall, but exceeds that in width. If it gets untidy, trim it into shape after it flowers. They produce fruits or berries that create seedlings. It is recommended that you prune the shrubs after they have fruited, during fall or winter.
Dead woods should be removed during summer months, and the bushes should be pruned in the period between mid winter to late winters, i.e., before stumphauling.buzzted Reading Time: 5 mins. Formative pruning plan in the spring for a single-planted bush. If it is necessary to trim a hedge or curb, the procedure will be performed in 2 stages. The first pruning is done in early June, and the second pruning is done until mid-August. Attention! Pruning prickly shrub barberry is carried out in the second year after planting, not earlier.
Jun 20, Pruning barberry plants increase shrub health and vigor. Prune for shape during the winter or fall after the plant has fruited. Remove dead wood during the summer and winter months. A 3-inch ( cm) layer of mulch helps with moisture retention.
Fertilizing barberry shrubs is.