Answer: As your new cherry tree matures it will develop a central leader all on its own. Just allow it to grow naturally at this point. If you pinch or prune the branches you'll just encourage a bushy growth pattern which is opposite of what you really want. Eventually it will develop a central leader all on its own. You can feed lightly with a water soluable fertilizer (such as Miracle Gro) to encourage new growth. Sounds to me as though you're doing everything right - you'll just have to be a little more patient. Enjoy!
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