This step-by-step grafting guide shows a method of grafting citrus trees that is both very easy and that also gives a high success rate. Patch budding of citrus trees is a popular method for topworking citrus trees to new varieties in Spain. In the past year I performed many patch bud citrus grafts and found that it also works very well as a technique for adding new varieties to an existing citrus tree to make a multi-grafted citrus cocktail tree.
An advantage of grafting citrus with the patch bud compared to T-budding and chip budding is that the larger surface area of the graft makes it less likely to be absorbed by a fast-growing target branch before the buds sprout. A disadvantage of grafting citrus with the patch bud compared to scion grafting techniques such as the cleft graft and the bark graft is that the buds can be slow to start growing. Although the particular graft demonstrated in this tutorial is of a Mato Buntan pummelo, I also found that patch budding works well for oranges, lemons, and limes; I expect that it would work well for any type of citrus.