There's no right answer. Even if you've only got a small balcony or patio, you can use planters to grow a wide variety of produce. Another pro-tip: think vertical. Trellises can dramatically increase your amount of useable space. If you've got more space to work with, the sky's the limit. Take it from Kyle, who states, "Everything we grow on our urban farm is packed into our 2500 square foot backyard. We have 15 different fruit trees and hundreds of other fruits, vegetables and herbs growing throughout all four seasons."