It also works well for lettuce wraps because of its large, soft leaves. World production of lettuce and chicory for 2017 was 27 million tonnes, 56% of which came from China.[4]. Always wear gloves and wash hands after harvesting vegetables from your garden. Stem lettuce, widely consumed in China, is eaten either raw or cooked, the latter primarily in soups and stir-frys. Use a long handled kitchen knife with a thin blade. If you are planting the lettuce during warmer weather, shaded areas are a good option. Post-Roman Europe continued the tradition of poaching lettuce, mainly with large romaine types, as well as the method of pouring a hot oil and vinegar mixture over the leaves. Last Updated: April 12, 2020 By using our site, you agree to our. She earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014. Every day at wikiHow, we work hard to give you access to instructions and information that will help you live a better life, whether it's keeping you safer, healthier, or improving your well-being. However, despite high levels of bacteria being found on ready-to-eat lettuce products, a 2008 study found no incidences of food-borne illness related to listeriosis, possibly due to the product's short shelf life, indigenous microflora competing with the Listeria bacteria or inhibition of bacteria to cause listeriosis. Incidence, Growth, and Survival of Pathogens in Fresh and Fresh-Cut Produce", "Bashiqa Journal: A Sect Shuns Lettuce and Gives the Devil His Due",, Articles with dead external links from October 2017, Articles with permanently dead external links, Articles containing Chinese-language text, Creative Commons Attribution-ShareAlike License. Growing lettuce is very easy as it does not take up very much space and can even be grown along with your flowers. [17] Once plants move past the edible stage, they develop flower stalks up to 1 m (3 ft 3 in) high with small yellow blossoms. ",,,,,,,,,,,,,,,,,,,, consider supporting our work with a contribution to wikiHow. This article was co-authored by Lauren Kurtz. Summercrisp – Also called Batavian or French crisp, this lettuce is midway between the crisphead and leaf types. This page was last edited on 7 November 2020, at 23:55. [54] Viruses, including hepatitis A, calicivirus and a Norwalk-like strain, have been found in lettuce. butterhead lettuce ( countable and uncountable, plural butterhead lettuces ) Boston lettuce quotations . Thanks to all authors for creating a page that has been read 16,845 times. If so, how long will it grow? Outbreaks Associated with Fresh and Fresh-Cut Produce. Dirt, fertiliser and gardening mulch can contain harmful chemicals. [10], Lettuce appears in many medieval writings, especially as a medicinal herb. For example, the larvae of the ghost moth is a common pest of lettuce plants. Names also often changed significantly from country to country. The extra layer makes the seeds more visible and easier to handle. Include your email address to get a message when this question is answered. Lettuce was originally farmed by the ancient Egyptians, who transformed it from a plant whose seeds were used to create oil into an important food crop raised for its succulent leaves and oil-rich seeds. Buttercrunch lettuce takes a while to run to seed so there is plenty of time after it matures for harvesting. [15] There are also a few varieties with yellow, gold or blue-teal leaves. Lettuce varieties will cross with each other, making spacing of 1.5 to 6 m (60 to 240 in) between varieties necessary to prevent contamination when saving seeds. Different locations tended to prefer different types of lettuce, with butterhead prevailing in northern Europe and Great Britain, romaine in the Mediterranean and stem lettuce in China and Egypt. Certain varieties contain more than others, and some selective breeding and genetic modification studies have focused on using this trait to identify and produce commercial varieties with increased pest resistance. Clay soil takes longer to drain, so you may not need to water as often. [56] Folk medicine has also claimed it as a treatment for pain, rheumatism, tension and nervousness, coughs and insanity; scientific evidence of these benefits in humans has not been found. Do not pull on the lettuce plant or you will disturb the roots. sativa,[1] L. scariola var. [29] Although most lettuce grown today is used as a vegetable, a minor amount is used in the production of tobacco-free cigarettes; however, domestic lettuce's wild relatives produce a leaf that visually more closely resembles tobacco. Your support helps wikiHow to create more in-depth illustrated articles and videos and to share our trusted brand of instructional content with millions of people all over the world. This vegetable will grow for many weeks throughout the mild weather during the spring and the fall months. There are 20 references cited in this article, which can be found at the bottom of the page. When harvesting your lettuce, pull or cut the leaves during the cooler morning temperatures. [22] Most lettuce is used in salads, either alone or with other greens, vegetables, meats and cheeses. If you're growing lettuce over the summer, then the heat may cause the crop to bolt, which will make it taste bitter. [57], Species of annual plant of the daisy family, most often grown as a leaf vegetable, "Lettuce (with chicory) production in 2017; Countries/Regions/Production Quantity from pick lists", "The Linnaean Plant Name Typification Project", "New Directions in Salad Crops: New Forms, New Tools, and Old Philosophy", "Developing Multi-Species Insect Resistance in Romaine Lettuce", "As Bagged Salad Kits Boom, Americans Eat More Greens", "Chapter IV.

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