rockm

Do not leaf prune anything two years in a row. May not kill the tree outright, but you will weaken it consdierably, leaving it open to all kinds of problems.

English oaks seem to be able to handle leaf pruning, and the leaves reduce. I don't have an Enligh oak, but do have a live oak. I've also tried North American forest white and red oaks. Almost all the forest oaks produce LARGER leaves when leaf pruned. This can happen with some trees, as leaf pruning forces the plant to produce a new crop of leaves fast. That means the plant will expend the least amount of energy for the maximum amount of return--larger leaves are easier to produce than alot of smaller ones and can cover the same area on the plant...