large, fabric-like bags which will be crammed with a growing medium and wont to grow plants and vegetables. they’re typically fabricated from plastic, but they can also be found in several breathable fabrics. Plants that do not have deep roots, like tomatoes, potatoes, salad greens, herbs, peppers, and other similar vegetables, work best in grow bags. The rule of thumb is anything you’ll plant in a very container, you’ll also plant in a very grow bag. Plus, grow bags are an ideal solution if you do not have an in-ground garden.