How to grow healthy fruit trees in limited space using espalier

Have you always dreamed of having a fruit tree laden with citrus, apples or figs but fear you are too limited on space? Or perhaps you have a barren wall or fence that, like a blank canvas, is screaming out for some creative coverage, but you haven’t quite found the inspiration? The solution to either scenario may lie in an artful horticulture technique first developed by the ancient Egyptians and refined and perfected in the Middle Ages by Europeans, and it’s called espalier.
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