Since I seem to be one of the two people that has ever talked about hedge pruning a tree as a technique I feel it is time I mention a few things about it. The word hedge means "boundary" it is an ancient word and comes to us from ancient times. This is what wikipedia says about hedge for those that are lazy...
"A hedge or hedgerow is a line of closely spaced shrubs and sometimes trees, planted and trained to form a barrier or to mark the boundary of an area, such as between neighbouring properties. Hedges used to separate a road from adjoining fields or one field from another, and of sufficient age to incorporate larger trees, are known as hedgerows. Often they serve as windbreaks to improve conditions for the adjacent crops, as in bocage country. When clipped and maintained, hedges are also a simple form of topiary."
To hedge a plant, one clips it to a boundary. This is no different than what one does when they clip their bonsai to shape. Many people clip their tree to a boundary, "hedge" it, to a more loose airy feel or allow many more "tips" to jut out of the boundary. I think what people get hung up on is the fact that pruning a boxwood hedge around your driveway is not the image that most people want to associate to their pruning of their bonsai. Hedges were not always pruned with a motorized hedge clipper and in the past hedges were maintained with hand tools same as bonsai. When making topiary, clipping to a boundary is no different than bonsai, it's just the shape hedged to is more fanciful, but the same none the less. In the two trees I showed of Bjorn, it is easy to see the exactness of the trimming, more akin to an actual hedge than many people wish to express. That's OK. Maybe after this people will not think in the same way and treat the word like a red haired step child. Maybe in the future we will not call bonsai hedged, and not call trident maples green helmets
On the tree below the foliage is obviously trimmed to a boundary and is in deed hedged to the actual meaning of the word. Not hedging to a boundary would yield and very messy, unorganized tree. I understand the need to call it "clipping or pruning to shape" much in the same way people seem to think they need to allow their leaves to "harden off" before pruning them. See, I didn't say hedge!
View attachment 305509