Posted: 17/04/2014 at 13:51
Cherries should be pruned in the summer to lessen the risk of Silver Leaf Disease, so June/July would be a good time.
It's a good idea to study the form of the tree now while it's without many leaves - taking photos and marking on them which branches need pruning will enable you remove branches in a way that will enhance rather than spoil the shape of the tree. In most cases it's better to take a branch out rather than shorten it. Also take out any branches which are dead or dying or showing signs of disease, and any that are crossing others or rubbing them.
After pruning I'd sprinkle the ground around it with some Fish Blood & Bone meal, give it a good soaking watering and then mulch with compost or well-rotted farmyard manure (don't allow manure to touch the trunk of the tree). That'll perk it up no end for next year.