Grafting is a type of tree surgery where a young branch or scion is melded with an older trunk or rootstock to form a new tree. In order for a graft to succeed, the plants must be compatible. Compatible plants are in the same genus. For example, a young branch from a peach tree can be grafted onto a plum tree because they are in the same genus.
Measure the diameter of the rootstock with a tape measure.
Locate a young stem from your desired plant type that has the same diameter.
Split the rootstock in the middle with a sharp grafting knife. The split should go 1-and-1/2 inches into the stem.
Cut the bottom tip of the young branch so that it looks like a wedge. The wedge should be roughly 1-and-1/2 inches long. Make the cut so that there are three buds remaining on the young branch.
Slide the young branch into the split in the trunk until you feel resistance. Inspect the graft and make sure that the green bark layers are matched completely. This ensures that the young branch will receive nutrients from the rootstock.
Wrap the branch with wax-based grafting tape so that the entire grafted area is completely covered.
Remove the tape when the young branch produces leaves.