South Balcony--every year no plants make it
I have a long narrow balcony that faces directly south and gets FULL sun. It is essentially a 3 sided box so it gets very hot out there due to lack of air flow.
I have tried all different places, containers and plants with almost no success. Some things I have tried: hibiscus, peony, basil, sage, rosemary, oregano, chives, and assorted flowers.
Any insights on what I can do to increase my success. Most important to me would be herbs as I am an avid home chef!