Marion, a California home gardener, has successfully created multi-grafted trees with 450 different apple varieties on one tree, 60 pear varieties on one tree, a 30-in-one plum, a 30-in-one citrus, an 8-in-one avocado, and an 8-in-one persimmon; her neighbor's fruit garden has become a conversation piece and tourist attraction despite being a personal hobby experiment.