It is recommended that trees are worked on after leaf fall and before bud burst. This however is not true for all species so we would prefer to look at each tree individually and give you a written report. Some examples of trees requiring work at other times are Cherry, Plum and related trees (Prunus species) These should be pruned soon after flowering to reduce the risk of bacterial infection. Maple and Birch should not be pruned in the spring to avoid ‘bleeding’ (exuding sap), which although not considered damaging can be unsightly. Magnolia and Walnut should only be pruned in high summer. Most common species of hedges can be cut any time of the year but again we would confirm this after inspection.