It's also known as the main ingredient in Caesar salad. When it bolts, or goes to seed, the flower stalks are 2 to 3 feet tall, with small, yellowish flowers on the stalk. Read on to learn more. Ring in the new year with a Britannica Membership, This article was most recently revised and updated by, Turner Classic Movies - Biography of Robert Mitchum, lettuce - Children's Encyclopedia (Ages 8-11), lettuce - Student Encyclopedia (Ages 11 and up). Nothing tastes better than crisp lettuce straight from the garden. Romaine … Most lettuce leaves taste bitter. If you don’t want to cut the whole plant at once then snip or break away older leaves—whatever size—from the outside allowing younger leaves at the center (called the central bud) to … Lettuce plants can have taproots or fibrous root systems. Test your knowledge with this quiz. For successful cultivation, lettuce requires ample water, especially in warmer weather. As you can see, the CDC’s advice is now to avoid any romaine lettuce from the Salinas, California, growing region. This makes sense, since plants have been stressed during harvest and transplant, and provided with a limited quantity of nutrients, without an adequate root structure to feed the plant. Log in. It has Iceberg lettuce’s crunch in its stem, Summer Crisp’s texture, and loose-leaf lettuce’s easy growing nature. Lettuce is a cool-season crop that grows best with moderate daytime temperatures (73oF) and cool nights (45oF). Lettuce is a cool-season crop that prefers temperatures of 55 to 65 °F for optimum growth. As a general rule of thumb, darker green lettuce varieties contain the most Vitamin A. Its members are guitarist Adam "Shmeeans" Smirnoff, Nigel Hall (keyboards, Hammond B-3 organ, piano, vocals), Adam Deitch (drums/percussion), Erick "Jesus" Coomes (bass), Ryan Zoidis (saxophone) and trumpeter Eric "Benny" Bloom. Though lettuce can technically germinate (depending on variety) in temperatures anywhere from 40-85°F, it’s also an annual crop meaning you must replant it each season. It begins producing seeds and acquires a bitter taste. Learn more. The five main cultivars are: green leaf, red leaf, cos, crisphead, and stem lettuce. Most lettuce varieties are eaten fresh and are commonly served as the base of green salads. You waited until the last spring frost and quickly sowed the seeds for your lettuce bed. Lettuce actually needs a good amount of airflow, in addition to a bit of moisture, in order to stay crisp. It’s a great leafy green to grow because it grows quickly, produces for a long time, and isn’t very demanding as long as you keep it sufficiently watered. Lettuce, no matter the variety, is considered a cool-weather crop. Diff… Most lettuce leaves are green, but some are red. Soon, spring passed, summer heat arrived, and gardening websites like this one are inundated with questions: Why is my lettuce bitter? Lettuce is generally a rich source of vitamins K and A, though the nutritional quality varies, depending on the variety. Information gathered indicated that the romaine lettuce of interest was harvested from the Salinas Valley growing region in California. Most lettuce leaves taste bitter. CDC laboratory testing identified the outbreak strain of E. coli O157:H7 in canal water samples taken from the Yuma growing region. Lettuce seedlings should be protected from the wind because the young plants are rapidly dried out. With a large variety of types and therefore flavours, lettuce isn’t just reduced to your Cos or iceberg! Sorry, your blog cannot share posts by email. Lettuce is a fairly hardy, cool-weather vegetable that thrives when the average daily temperature is between 60 and 70°F. Lettuce is generally a rich source of vitamins K and A, though the nutritional quality varies, depending on the variety. How To Store Clean lettuce before storing. Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Romaine Lettuce. Parris Island Cos lettuce. It is easily cultivated, and it requires low temperatures keep from flowering. Updates? These lettuces have an erect growth pattern, with long spoon-shaped leaves that form a … Place the dish on a windowsill or under grow lights. Its members are guitarist Adam "Shmeeans" Smirnoff, Nigel Hall (keyboards, Hammond B-3 organ, piano, vocals), Adam Deitch (drums/percussion), Erick "Jesus" Coomes (bass), Ryan Zoidis … There are two classes of head lettuce: the butterhead types, such as Bibb lettuce, with soft heads of thick oily-textured leaves, and crisphead types, such as iceberg lettuce, with brittle-textured leaves that form very hard heads under proper temperature conditions. This crop prefers a loamy soil with a high organic matter content. Growing lettuce from seedlings for early spring transplant is a good way to get a head start on the growing season. Will frost damage lettuce plants? FDA and states traced the source of some of the romaine lettuce eaten by ill people. In their statement, the CDC advised against eating or selling all types of romaine lettuce from Salinas, California. Do not allow the leaves to soak in water, it will cause them to lose crispness. That's why restaurants store their lettuce in special perforated bins that allow for air circulation while it's held in the fridge. Next, you’ll plant lettuce seeds in the pot. anytime in the spring when the soil is dry enough to rake the surface About Lettuce. Tanimura & Angle bagged romaine lettuce heads got recalled in 19 states and Puerto Rico after the state of Michigan found E. coli in a sample from Walmart. Instead of a generic looking and tasting salad, you can make something interesting to eat and look at. lettuce (countable and uncountable, plural lettuces) An edible plant, Lactuca sativa and its close relatives, having a head of green and/or purple leaves. It is most often grown as a leafy vegetable. In many parts of the world, the cos, leaf, and butterhead types are most popular, though some varieties are difficult to ship and are commonly grown on truck farms or market gardens relatively close to markets. History. The scenario changed since the late 1900’s when the crop began to be cultivated in large-scale in other parts of the world. Interplant your lettuce with taller crops to provide shade as the weather warms. Where to Plant Lettuce The ideal lettuce growing location for spring and fall is in a spot that receives full sun. In second place were North American exporters at 30.8% with 6.9% of international lettuce shipments originating from Asia. Articles from Britannica Encyclopedias for elementary and high school students. Leaf lettuce is one of the easiest and most satisfying edibles to grow. …a leaf, such as cabbage, lettuce, parsley, spinach, and chive; an immature flower, such as cauliflower, broccoli, and artichoke; a seed, such as pea and lima bean; the immature fruit, such as eggplant,…, and sweet corn (maize); cabbage, lettuce, and spinach are suited to vacuum cooling; air cooling is preferred for bean, cucumber, eggplant, pepper, and tomato. Originally, the countries of North America and Western Europe ranked the highest in lettuce production in the world. Complete our in-store customer satisfaction survey to be entered into a grand prize draw. The CDC said no common grower, supplier, distributor, or brand of romaine lettuce has been identified. Common varieties are Romaine, iceberg, and butter lettuce. After you have planted the lettuce seeds, you’ll need to fill the pot the rest of the way with potting soil. Far from the shrink-wrapped iceberg lettuce we all know so wellperfectly round and crunchy, almost all water, and able to last a long time after harvestthe multitude of lettuce varieties available at the grocery store and farmers markets offer a wide range of textures, colors, and flavors. Most lettuce varieties are eaten fresh and are commonly served as the base of green salads. Our editors will review what you’ve submitted and determine whether to revise the article. How to find out where your romaine lettuce comes from According to the CDC so far there has been 98 cases of E. coli across 22 states. Recorded at Colorado Sound outside of Denver, near the home of New York transplants and band co-founders, guitarist Adam “Shmeeans” Smirnoff and percussionist Adam Deitch, with legendary engineer Russ Elevado (D’Angelo, The Roots, Erykah Badu), Elevate shows LETTUCE touching on its past while moving full force into the future. RECALL ALERT: Tanimura & Antle is recalling packaged single head romaine lettuce with 10/15 or 10/16 … Lettuce starts to "bolt" in hot conditions toward the end of the growing season. Corrections? In this video, I show you how to grow lettuce from seed indoors, and harvest it in just one month! Quick to germinate and mature, you can harvest leaves as soon as they’re large enough and go back for more as needed. It has a bit more body … However, in China, a majority of the lettuce produced is utilized for domestic consumption. Mâche, also known as corn salad or lamb's lettuce, comes in lovely little rosettes of dark green leaves attached in groups of 4 or 5 at the roots. You can keep this from happening by pinching off the center of the plant. Radicchio is Italian in origin. Radicchio is great in mixed salads and also works well grilled. How cool is cool, though? The Romans seemed to have been the first to use lettuce … https://www.epicurious.com/recipes/food/views/lettuce-soup-231995 Though lettuce alone is unlikely to result in accrual of a lot of muscle, its synergistic effect with other protein sources makes it as important as ever. Lettuce definition is - any of a genus (Lactuca) of composite plants; especially : a common garden vegetable (L. sativa) whose succulent leaves are used especially in salads. They come in a wide variety of colours and shapes, from pale green to rich russet or bronze and with frilly leaves, round, thin or thick leaves. Some kinds of lettuce grow in a head shape like cabbage, while the leaves of some kinds grow more loosely. Lettuce. Lettuce is cool-season crop that grows best in the spring and fall in most regions. From Middle English letuse, of uncertain precise origin, probably from the plural form Old French laitues, derived from Latin lactūca (“lettuce”), from lac (“milk”), because of the milky fluid in its stalks. Gently pat dry leaves with paper towels or a clean kitchen … Lettuce, for example, is a vegetable which contains a little protein, but also enzymes that make protein synthesis more efficient. Lettuce is a veggie that does best when grown in cooler, moist conditions; temperatures between 45-65 F. (7-18 C.) are ideal. While the bitter temperature outside is hostile to every green thing, the warm temperature inside our home is welcoming to them. The majority of product produced and consumed in the U.S. is currently from California and Arizona. The term “cos” is a term for the romaine types of lettuce. Where to Plant Lettuce; The ideal lettuce growing location for spring and fall is in a spot that receives full sun. Epidemiologic, laboratory, and traceback evidence indicated that romaine lettuce from the Yuma growing region was the likely source of this outbreak. butterhead lettuce. Romaine lettuce is safe to eat as long as it's not from California’s Central Coast growing region, federal health officials said late Monday. Why does lettuce turn bi… If a lettuce plant does end up bolting, go ahead and pull it up. It grows best in the spring or fall because lettuce prefers temperatures between 60-70°F. Some kinds of lettuce grow in a head shape like cabbage, while the leaves of some kinds grow more loosely. The five main cultivars are: green leaf, red leaf, cos, crisphead, and stem lettuce. Let us know if you have suggestions to improve this article (requires login). FDA officials said the most likely source of contamination is from the Central Coast growing regions in northern and central California. FDA investigators have traced the outbreak to farms in Arizona. How to Harvest Lettuce. Turn the lettuce head over and let the water run out. Store lettuce in plastic bag or airtight container in refrigerator for up to 2 weeks. lettuce (n.) garden herb extensively cultivated for use as a salad, late 13c., letuse, probably somehow from Old French laitues, plural of laitue "lettuce" (cognate with Spanish lechuga, Italian lattuga), from Latin lactuca "lettuce," from lac (genitive lactis) "milk" (from PIE root *g(a)lag-"milk"); so called for the milky juice of the plant. By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica. Post was not sent - check your email addresses! Beautiful, nutritious salads freshly harvested from your own backyard will … Lettuce is produce year round in the U.S. With its dependable yields, Coastline is a favorite among gardeners who want to a predictable harvest and a stress-free growing adventure. Celtuce lettuce, also called asparagus lettuce or stem lettuce, has a distinctive, large stem. That’s none, nicht, nadda romaine from that part of the country. The yellow flower heads produce achene fruits with feathery pappus structures for wind dispersal. Old English had borrowed the Latin word as lactuce. The lettuce most commonly found in supermarkets (iceberg, or crisphead, lettuce) is the most difficult to grow in the home vegetable garden. Luckily, this lettuce is pretty easy to spot. Leaf color ranges from light green through reddish brown. Report Incident This outbreak is under investigation. Most lettuce leaves are green, but some are red. Lettuces are the most popular of all the salad leaves. Click to share on Facebook (Opens in new window), Click to share on Twitter (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to email this to a friend (Opens in new window), Spain: US$897.2 million (30.7% of total lettuce exports), Spain: US$864.8 million (net export surplus up 16% since 2015), United States: $149.8 million (down -42.2%), Canada: -US$391.7 million (net export deficit down -2.3% since 2015), United Kingdom: -$200.3 million (down -13.9%), Partners for Import Export Trading Agencies & General Supplies (Egypt), Yunnan Chuntian Agricultural Products (China). Because lettuce seeds are so small, it is important to remember that you’ll need to go back over the grow area when germination has occurred in order to thin it out. The leaves of domesticated varieties come in a wide range of colours, from shades of green to deep red and purple; variegated varieties have also been developed. Start by cutting your purchased lettuce about 1-2 inch from the bottom. Lettuce (Lactuca sativa) is a popular leafy vegetable in the daisy family.It ranges in color from yellow to dark green but may also have reddish hues. Spain and then the US are the two largest exporters of lettuce in the world. It should be planted in early spring or late summer. Lettuce is low in calories, and a source of Vitamin A, Vitamin C and folacin. Use a handful of pine needles around tender seedlings to help prevent wind damage and also provide support. 9. Source: essgee51. Lettuces are harvested prior to flowering, as the “bolting” of the flower stalk elongates head lettuce, reduces the size of the leaves, and imparts a bitter flavour. The Salinas Valley growing region in California was the main source of the romaine lettuce in both products. Lettuce (Lactuca sativa) – a reliable summer favourite, salad filler and sandwich staple!But it can be grown year round, with very little tender loving care after making sure that there is adequate feed. Recorded at Colorado Sound outside of Denver, near the home of New York transplants and band co-founders, guitarist Adam “Shmeeans” Smirnoff and percussionist Adam Deitch, with legendary engineer Russ Elevado (D’Angelo, The Roots, Erykah Badu), Elevate shows LETTUCE touching on its past while moving full force into the future. Radicchio comes in two main varieties, the small cabbage-like Chioggia and oblong Treviso. Smaller percentages came from Africa (0.8%), Oceania (0.3%) mostly Australia, then Latin America (also 0.3%) excluding Mexico but including the Caribbean. Cut bottom core off and thoroughly wash leaves under cold water. Share your feedback of your local Sainsbury's store at Lettuce Know. Year over year, worldwide sales of exported lettuce increased by 2.7% from 2018 to 2019. Shade cloth being used to reduce temperatures for cool-season crops such as lettuce Lettuce is a cool-season crop, so in hot climates you may get better results growing it in a cooler, shadier spot, especially as the young plants start out. Romaine lettuce is a staple green in many diets, and for good reason! Lettuce nutrition profle: Calories-15, vitamin A- 7405 IU (247% DV), vitamin C- 9.2 mg (15% DV). Spring and fall in most regions a cold frame and transplanted in the United states Yuma region. Types and therefore flavours, lettuce exports by country totaled US $ 2.92 billion 2019... And deadly one that stretched from March to June of 2018 a shallow dish about! Nearly 29 percent water to run all through the head to refresh it you are agreeing to,... Special perforated bins that allow for air circulation while it 's also known as the warms. 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