appearance colors colours cultivars edges fancy foliage food fresh gardening green greenery greens growth hydroponics lactuca sativa leaves lettuce plants salad salads textures varieties vegetable vegetable growth vegetables abstract garden health healthy vegetable-growth veggies edible growing lactuca-sativa live living raw surface surfaced surfaces variations varied variety beans climber climbing develop french grow natural nature plant pod baby-cos caesar-salad cos cos-lettuce crisp-leaves crunchy elongated lactuca-sativa-longifolia long-leaves romaine-lettuce salad-green succulent tangy tasty texture earth irrigate irrigation mature seedlings Soil water watered young row rows