When I was 10 or 11, I planted a dwarf Navel orange. This was in South Gate, CA, about 10 miles south of downtown L.A. It never bore any fruit. Next was a Meyer lemon, which had tons of fruit, followed by a dwarf Redhaven peach, which produced not more than a half-dozen fruit and then went into decline. After that, it was a Babcock peach and a Hass avocado, which produced lots of delicious fruit. The vegetable garden also was a huge success--carrots, lettuce, broccoli, green beans, tomatoes, okra, even corn!