We offer certified organic lettuce seed of organic red leaf lettuce, organic green leaf lettuce, organic oak leaf lettuce, organic romaine lettuce, and organic butterhead lettuce. Leaf lettuce, both red and green, tends to produce loose, open heads of broad, ruffled leaves with crisp texture. Oak leaf lettuce also produces loose heads, but the leaves are more deeply lobed. Romaine lettuce is generally more heat tolerant than other lettuce varieties, and forms tall, upright heads of firm, ribbed leaves. Butterhead lettuce forms tight heads of soft, tender leaves. Romaine and leaf lettuces have almost double the vitamins and minerals of other kinds. In China, lettuce represents good luck – at High Mowing Organic Seeds, our lucky lettuce varieties are available in both raw and/or pelleted seed.