The Lettuce Butterhead Kagraner Summer, 'Lactuca sativa', is a French butterhead also known as 'Butter Bow Head', and has tasty, well-formed medium sized heads that are slow to bolt in summer heat. The French butterhead was originally from Germany. It is excellent for window boxes, indoor pots, and is a cute border plant. The mild tasting leaves are soft and buttery. The lettuce leaves of the Kagraner Summer Butterhead are slightly crumpled and light green in color.
Lettuce is a cool season annual. Successive plantings can produce lettuce spring through fall. Plant in early spring, 3 to 4 weeks before the average last frost date, and successive plantings thereafter every 3 weeks until 5 weeks before fall frost. Lettuce likes light, fertile, moist, and well drained soils. They will grow in light shade. Lettuce grows well near cabbage, beets, carrots, chives, garlic, and onion.