Answer: The best time to prune is during the winter months when borers and other destructive insects are not active. However, dogwoods develop flower buds during the summer months for the following spring's floral display so if you prune during the winter months you have the potential for pruning off the flower buds and you won't get flowers the following spring. If you prune in the summer you can treat the pruning wounds with Thiodan (an insecticide) to prevent borer infestation. Best wishes with your dogwood.
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