About Lettuce. Most lettuce leaves are green, but some are red. Radicchio comes in two main varieties, the small cabbage-like Chioggia and oblong Treviso. 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. 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 plants can have taproots or fibrous root systems. These include whole heads, hearts, pre-cut packaged lettuce and salad mixes, including baby romaine, spring mix and Caesar salad, the agency said. Most lettuce leaves are green, but some are red. After you have planted the lettuce seeds, you’ll need to fill the pot the rest of the way with potting soil. Lettuce is a funk band that originated in Boston, Massachusetts in 1992. It should be planted in early spring or late summer. Lettuce is a funk band that originated in Boston, Massachusetts in 1992. The CDC said no common grower, supplier, distributor, or brand of romaine lettuce has been identified. Our editors will review what you’ve submitted and determine whether to revise the article. Epidemiologic, laboratory, and traceback evidence indicated that romaine lettuce from the Yuma growing region was the likely source of this outbreak. The Salinas Valley growing region in California was the main source of the romaine lettuce in both products. 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. Log in. The outbreak was traced to romaine lettuce grown in the Yuma region of Arizona. You waited until the last spring frost and quickly sowed the seeds for your lettuce bed. 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. Head lettuce is usually started indoors or in a cold frame and transplanted in the spring after the last frost date. 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. Smaller percentages came from Africa (0.8%), Oceania (0.3%) mostly Australia, then Latin America (also 0.3%) excluding Mexico but including the Caribbean. Luckily, this lettuce is pretty easy to spot. It grows best in the spring or fall because lettuce prefers temperatures between 60-70°F. The leafy green makes a tasty base for salads no matter where it is from, but homegrown lettuce has a flavor that store-bought varieties cannot rival. 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. 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. Common varieties are Romaine, iceberg, and butter lettuce. Information gathered indicated that the romaine lettuce of interest was harvested from the Salinas Valley growing region in California. How to Harvest Lettuce. Vegetable gardeners often talk about their plants "bolting," which simply means that the plant sends up a flower stalk and goes to seed. Turn the lettuce head over and let the water run out. Lettuce. Lettuce is produce year round in the U.S. Will frost damage lettuce plants? As you can see, the CDC’s advice is now to avoid any romaine lettuce from the Salinas, California, growing region. Report Incident This outbreak is under investigation. Most likely, your bitter lettuce is the result of the maturation process. 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. 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. Lettuce is generally a rich source of vitamins K and A, though the nutritional quality varies, depending on the variety. Updates? 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