Pruning in April-May
Flowering currant can be pruned after flowering in April or May. Depending on the condition of the plant, various pruning methods can be applied.
You may want to rejuvenate the bush. This is done by selecting one third of the branches, divided evenly over the bush, and cutting these back to a height of about 50 cm. Do not cut below the lowermost branching point. The more branches that remain, the bushier the new growth will be.
If your bush is large and fairly old, you may decide to rejuvenate more drastically by cutting all the branches down to 50 cm in one go. Here, too, you should leave the lowermost branches to ensure bushy regrowth.
If you just want to keep your currant bush neat and compact, you can give it a light trim.