Hi, very much a garden newbie here but keen to learn. I have tried reading up on the pruning of elder trees but am still a little nervous. We have two giants in our garden which were there when we moved in two years ago. They are casting huge shade and overhanging our neighbours garden too so we want to reduce the size.
They are around 5m tall however and have large trunks up to 20cm thick. Am I still OK to cut right back? The trunks will take some serious sawing but as long as they survive I'm happy to take the challenge!
I've included a photo, for scale they are 6 foot fence panels.
How far would you go in terms of cutting back? Sorry if it's a silly question, all the advice I could find related to much smaller jobs.