Prunus mahaleb_Bunji-gi_Give me a place to stand on, and I will move the Earth ( aka ... bend the f... trunk )
Just looking at this mahaleb last autumn I realised that all my previous attempts to change the angle of the trunk in its last third were just a mere tickling. I was thinking to fix it immediately but giving it a second thought I decided to postpone the activity till the time the tree enters the post pormancy period = the level of hormones inhibiting the activity of the tree is low but the tree is not starting its activity ( I mean visible activity such as the growht of the buds ) because it is kept low till the time of longer days and warmer temps. Autumn and winter are in my experience the most suitable periods for heavy bends but the most problematic one at the same time. Heavy bends mean a tissue damage that could suffer even more because of the winter frost. So you should keep such trees in the non frost area. Not below freezing point and not above 5-6°C as this is about the right range to keep the trees in dormancy. Clear - you do not kill your tree if for any reason