Grafting is a technique that joins material from two trees, which will grow together as one tree. Grafting is very useful because it can help you to grow a tree with superior qualities. For example a marula tree that produces big juicy fruits from which you can make the best omaongo, or a marula tree that produces fruits with big kernels that contain a lot of oil. It is not 100% guaranteed that a grafted marula seedling will survive, but if it does it will bear fruits after 1 or 2 years!