Rosemary will last the winter and repell sone insects. Also cover the smell of any questionable plants that might be attending your services. I like to grow things i eat the most of. For instance, i eat kale almost every day. Blend it up in a smoother. Also, Swiss chard, mints, oregano, cabbage, pepper varieties that i cant find at the store, cherry tomatoes, and Squashes too! Watermelons. Don't over plant and get some row covers when you can. If you're organic you'll either have to have perfect plants to repell insects or some barrier. What i mean by that is insects won't touch textbook healthy plants but will destroy plants with flaws. As a begginer, youll have tomato worms, stem burrowers, and whatever else sees your plot from above or my already live nearby. The best bet is a barrier sheet or shade netting. Good luck
A large weedy garden will produce much less than a small weed free garden.