Scroll down to the link of this tutorial and you will see that bark grafting on a limb works very well with persimmons. 100% success rate if the timing is right and your scionwood is good.
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review the tutorial from the beginning and on page 4 you would see the special mention of persimmons. The devil's in the details, that's why please read... If you miss a single detail, your persimmon graft would not be successful. It helps to practice on expendable wood.
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