Horticultural aide memoire No. 4: Prune blackcurrants
The blackcurrant is a simple and galumphing sort of shrub with few, but distinctive, requirements. Now is the time for its annual pruning. The idea is to remove one-third of the shoots right down to the ground with secateurs or loppers. The shoots to remove are the oldest ones, so that a new third of growth appears on each bush each year. If the bush itself is new, plant it so that the base of the shoots is just below ground level and amaze your neighbours by cutting the whole lot to the ground. Thereafter, adopt the annual system outlined above.