Answer: Sometimes this type of damage can be repaired by what is essentially grafting the broken stem back onto itself, but this is a bit tricky for the average gardener. The alternative would be to prune it off making a clean cut that will heal better and faster than a jagged broken edge. You might wish to consult with a professionally trained arborist specializing in ornamental trees on site about the best approach to take. I'm sorry about your tree!
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