Q.When To Cut/prune A Walnut Tree
Thr tree is very old and large/tall but very healthy. I need to reduce the size. It is now September and the tree is full of fruit so I am reluctant to cut at this time. Am I able to cut in mid to late October? I am situated in south west France so that time of year is relatively warm.

BushDoctor
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on September 26, 2022
Generally, you want to cut closer to the end of dormancy, but while the tree is still dormant. This article will help:
https://www.gardeningknowhow.com/edible/nut-trees/walnut/how-to-prune-walnut-trees.htm
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