Q. I have read about training trees to fit in small spaces or against a wall. What can you tell me about this? I have a brick wall in an alcove and also a small space near an entry sidewalk. A.

Multiple trees from Norfolk are being showcased at BBC Gardeners' World Live this month. Seven small-leaved lime pleached trees have set off from Just Pleachy's nursery in Ormesby to appear at NEC ...