Generations of gardeners have counted on Salad Bowl Leaf Lettuce for its flavorful, tender-crisp leaves. This All-America Selections winner produces close-set, deep-lobed, brilliant green leaves. It's noted for its lasting sweetness and tenderness-and it stays crisp even after the weather becomes hot. It's slow to bolt. Salad bowl leaf lettuce is a cool-weather crop that can be grown in the spring and fall gardens. To extend the lettuce season, sow lettuce seed every two weeks. Can be grown in containers and takes around 45 days.