By Betty Gold For those of us living in crowded cities or small-sized apartments, the idea of having a sprawling, spacious garden is—sorry, can't resist—an urban legend. But missing a big backyard doesn’t mean we can’t still grow our own herbs, produce, and other outdoor plants. The trick is knowing how to maximize our own small-sized patio (or rooftop garden, windowsill, or balcony), picking the proper plants to grow, and tending to them in all the right ways.