Answer: It sounds like the tree suffered transplant stress and/or as a newly planted tree suffered badly from last year's drought and consequently has died back almost to the ground. The dead wood of the top will not regrow, so it should be removed. However, it will be difficult to impossible to develop a healthy and well-shaped tree from such an unfortunate base. You might consider starting with a new tree altogether. Otherwise, select the best of the sprouts and encourage it to become the "replacement leader" by making sure the other new branches are kept a bit shorter. You may also splint it or stake it gently into a more upright position. I'm sorry about your tree.
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