I've been contemplating on turning our backyard into an urban garden soon. I gained the inspiration to try and learn how to create an urban garden from my dad's 75-year-old friend who's still very healthy and attentive despite his age. He says his secret is his years of intake of organic food. I have heard a lot of positive heath effects of organic food but in our area, the amount of these products are double the price of the regular ones. More and more people are now turning to organic farming as part of their lifestyle change and shift to healthy diet. So here I am trying to learn the art of urban gardening so I could make sure that the crops I would plant would grow well because as I said in another thread, I don't have what we call a "green thumb" yet. What are your thoughts on urban gardening guys?