For a balcony, I would try salad greens.
One summer I was able to buy more preps, because we had home-grown salad several times a week. In the early stages I was only able to add a few leaves to our bought lettuce, but as time went by the salad plants were a foot tall, and I was able to reduce the vegetable bill to very little.
One summer I was able to buy more preps, because we had home-grown salad several times a week. In the early stages I was only able to add a few leaves to our bought lettuce, but as time went by the salad plants were a foot tall, and I was able to reduce the vegetable bill to very little.