When I first moved to California in my 20s, I was shocked at the amount of stone fruit going to waste in peoples’ yards. To a Midwestern kid who grew up thinking that a ripe peach in February was a great treat, the sight of peaches by the bushel rotting on the ground because someone had a peach tree in their yard that had been planted as an ornamental and they didn’t want to deal with it — well, I was genuinely shocked. And now I have a yard with two different varieties of plums, and four apple trees. The…