I am absolutely crazy about trees and now have a collection of approx. 80 of my favourite species. The majority of these are grown in pots, but they are never at their best with the confined root space. I can prune the trees to restrict their height, but I am now considering pruning the roots as well so that they can remain in the same size pots for as long as possible. It is the same principle as bonsai, and sounds theoretically possible, but I am nervous about experimenting on my beloved trees. Has anyone here ever tried this sort of tree root pruning? I would like to know how much I can take off, and if there are any particular trees that may not survive this drastic surgery. I specifically need to prune a few cherry trees, a silver birch, a large acer palmatum, a magnolia, and a sequoia. I desperately need to create some more space in my small garden, and would appreciate any advice on this subject. Alternatively, has anyone got any land for sale !!?