Because I am very partial to herbs and all things herbal, I would plant a kitchen herb window box. I would include basil, oregano, thyme, parsley, sage. Plant rosemary in the middle. Depending upon what herbs you use in your recipes and the size of the window box, dill and/or cilantro could be planted as well. Make sure to pinch or trim off the tops of your herbs regularly to keep them tidy and bushy. Don't let them flower if you want to continue using them in soups, salads, meat dishes, etc.