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It is generally best to do the heavy cutting in winter, while the treesare dormant. Pruning in early spring or summer may cause thetree to "bleed," with a consequent check to the root system from theloss of food. This is especially true of maples. One advantage, how-ever, of spring or summer trimming is that the tree will recover morequickly and start to heal the wound, which would be impossible duringthe winter season. If trees are pruned in winter the " shaping up " andremoval of small pieces of dead wood should be done after the leavesappear at which time symmetry can be better judged and all deadbranches can be more easily discovered. To assure the least possibleinjury from exposure to climatic conditions winter pruning, if neces-sary, should be delayed until the danger from the more severe winterconditions is past. |
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