Lettuce comes in many forms, according to Adrienne R. Roethling, director of curation and mission delivery at Paul J. Ciener Botanical Garden, such as head, loose-leaf, and a variety of colors like ...

There’s a reason why lettuce is one of the most popular hydroponic crops for beginners and experts. The crisp, leafy green is easy to grow hydroponically, plus it's super versatile in the kitchen.