Iceberg lettuce is often referred as a ‘useless’ vegetable and there is also a joke stating that this vegetable will provide as much nutrients as a cardboard. Other names: Head lettuce, iceberg lettuce Uses: Shredded in salads, on sandwiches, and garnished in snacks 2. Despite the fact that the iceberg lettuce has far less number of nutrients when compared to other green vegetables, it is not altogether ‘useless’ and has a few benefits. Thin head lettuce to stand from 12 to 14 inches apart. You’re right that iceberg, a popular crisphead type lettuce variety, do indeed form tight heads as they mature. Plants that feel threatened by harsh temperatures will often go to seed. • Leaves of looseleaf varieties are … So, even though we can control temperatures closely in greenhouses, producers may not be able to exactly emulate conditions that are common in field iceberg production. Lettuce doesn't head well if it's crowded. It has curved, overlapping leaves forming crispy, round heads. • Head lettuce does not form head. Instead, it forms soft, loose heads that taste “buttery,” hence the name. However, there are conditions that can prevent this particular type from forming a proper head. Even exposure to cold while the plants are seedlings can play a role. Iceberg should be 12" apart. Lettuce is a cool weather plant. They … Of the head-forming lettuces, butterhead is considered to be a loose-heading type because the leaves don’t form tight, hard heads, like iceberg. Crisphead , also known as 'Iceberg', is the lettuce most widely available as a fresh market type. Iceberg lettuce is great in salads, wraps, and a variety of other recipes. Lettuce is generally a pretty easy-going crop and they’ll do this on their own without intervention from us. Leaves are tender and often mild but flavorful. Your lettuce is bolting already, even if it a leaf lettuce. If this is what you're after (rather than a cutting mix) here is how to do it. If lettuce seedlings are exposed to 40 to 50 degrees Fahrenheit temperatures for several days in a row, they will start forming flower buds, although the flower stalk won't shoot up until the weather warms. Also, fall crops often head better than summer crops - as the weather in the fall is cooling as they mature - which is exactly what they love. Most head lettuce varieties will bolt when it warms up and not form a head anyway. Once they reach this stage, bolting is … It has a tightly compacted head with crisp, light-green leaves. How to Grow Iceberg Lettuce. Plants are crowded. In the south we plant lettuce in the fall. Butterhead Lettuce Make sure to harvest when the heads are big and tightly packed. Butterhead. Spring-sown crops mature as hot weather arrives. Many home gardeners find this type difficult to grow because it requires a long season and some of the most advertised varieties are not heat- Growing your own iceberg lettuce is simple, especially when you keep the seedlings indoors for the first couple of months. Seed was planted too deep; place seed on seedbed and cover with ½ inch of soil. If we can beat the hard freezes, head lettuce is possible here. The outer leaves are edible, but are not sweet like the blanched inner leaves. • Romaine lettuce does not form heart. The leaves are creamy-white on the inside and are tightly-packed, having a mild flavor and crunchy texture. Head Lettuce Though most types of lettuce will eventually form a head, there are some, such as iceberg and romaine, that are typically grown specifically for a tight, central head. You most likely planted a leaf lettuce. 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