A Fruit Cocktail Tree is not a species in itself but the result of meticulous hand-grafting by expert botanists. They graft multiple fruit tree varieties onto one single rootstock. A fruit cocktail tree, also known as a fruit salad tree, is a fruit tree that has other fruit trees grafted onto it. The four main types of fruit cocktail trees are: stone fruit (Prunus), citrus (Citrus), apple (Malus) and multi nashi (Pyrus)