Some Lettuce Container Garden Basics It's easy to grow lettuce in plastic, reusable lunch bags, which can be purchased at most markets for a dollar or so. You could also grow flowers, herbs or many other container garden vegetables, equally successfully in any plastic, reusable grocery bag. Lettuce is a great container gardening vegetable because its short roots mean it can grow anywhere that has good drainage  — even a shallow container. However, lettuce likes to be kept moist, and it is easier to Read More...