To eat a fully tree ripened Japanese persimmon in October creates a pleasant autumn memory that your children will want to experience each year. The Giant Fuyu persimmon can be eaten straight off the tree, even in the green stage with no bitter taste like most other cultivars, however, many other varieties are delicious when allowed to soften on the kitchen table. Japanese persimmons are ideal trees to plant in urban small gardens, because most of the trees are grafted on dwarfing rootstocks.