|Can you prune serbian spruce to a certain width and if so, when is the best time?
|Unfortunately these spruces do not take well to being pruned on a regular basis. The natural size is about sixty feet tall and quite narrow in proportion to that -- but narrow in this case means about twenty feet across. If this tree is really too large for where it is planted, you may want to consider replacing it with something that matures to a smaller size. I'm sorry I can't be more encouraging.