I made this vegetable container garden a in plastic, reusable lunch bag, bought at Whole Foods for just 79 cents. I filled it with lettuce which is is one of the easiest container gardening vegetables to grow. However, you could also grow flowers or herbs or many other container garden vegetables, equally successfully in any plastic, reusable grocery bag.
Lettuce is a great container gardening vegetable because with its short roots, you can grow it in almost anything with good drainage - even a shallow container. However lettuce likes to be kept moist, and it is easier to keep your plants moist in a larger container that holds more soil, because the more soil, the better the water retention.
You can grow lettuce from seed or buy seedlings, which are usually inexpensive.
Start with a sunny spot, but one that isn’t too hot. Most lettuce likes cooler temperatures, though you can find some varieties that are more heat tolerant (Black Seeded Simpson, Simpson Elite, Green Star or Tropicana, to name a few).
