Lettuce (Lactuca sativa) is a temperate annual or biennial plant of the daisy family Asteraceae. It is most often grown as a leaf vegetable. In many countries, it is typically eaten cold, raw, in salads, sandwiches, hamburgers, tacos, and in many other dishes. In some places, including China, lettuce is typically eaten cooked and use of the stem is as important as use of the leaf. Both the English name and the Latin name of the genus are ultimately derived from lac, the Latin word for “milk”, referring to the plant's milky juice. Mild in flavour, it has been described over the centuries as a cooling counterbalance to other ingredients in a salad.Grigson, p. 313
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Knowing how to wash lettuce is a basic kitchen skill ... previous | blog index | next. When making a salad, lettuce is usually one of the main ingredients. ...startcooking.com/blog/39/Washing-LettuceIsn't the Lettuce Brave?
Isn't the Lettuce Brave? "Dream and the way will be clear...Pray and the angels ... Isn't The Lettuce Brave" is full of her creative expression, thoughtful muses, ...bravelettuce.blogspot.com/lettuce : E. coli Blog
... Blog. E Coli Lawyer & Attorney : Marler Clark Law Firm : E. coli Blog ... Tags: E. coli Watch, E. coli Legal Cases, E. coli Outbreak, Taco John's, lettuce ...www.ecoliblog.com/tags/lettuce/Lettuce — Blogs, Pictures, and more on WordPress
Lettuce wrap — 3 comments. ninazephyr wrote 2 days ago: Something to snack on! Lettuce with chopped up cucumber and avocado. YUM. Yesterday at Dandelion I ... more ...en.wordpress.com/tag/lettuce/lettuce : Marler Blog
Home > lettuce > ... Cryptosporidium Blog ... Enterobacter Sakazakii Blog ...www.marlerblog.com/tags/lettuce/
Lettuce (Lactuca sativa) is a temperate annual or biennial plant of the daisy family Asteraceae. It is most often grown as a leaf vegetable. In many countries, it is typically eaten cold, raw, in salads, sandwiches, hamburgers, tacos, and in many other dishes. In some places, including China, lettuce is typically eaten cooked and use of the stem is as important as use of the leaf. Both the English name and the Latin name of the genus are ultimately derived from lac, the Latin word for “milk”, referring to the plant's milky juice. Mild in flavour, it has been described over the centuries as a cooling counterbalance to other ingredients in a salad.Grigson, p. 313
Description
The lettuce plant has a short stem initially (a rosette growth habit), but when it blooms, the stem lengthens, branches, and produces many flower heads that look like those of dandelions, but smaller. This is referred to as bolting. When grown to eat, lettuce is harvested before it bolts. Lettuce is used as a food plant by the larvae of some Lepidoptera.
Cultivation
Lettuce is grown commercially worldwide, hardy to Zone 6, requiring light, sandy, humus rich, moist soil. It dislikes dry conditions, which can cause the plants to go to seed (known as bolting). It is normally grown by early and late sowing in sunny positions, or summer crops in shade . It is considered fairly easy to grow and a suitable crop for beginners.
Planting Depth: Some resources suggest planting seeds by covering lightly with soil while others suggest a depth of 1/4 to 1/2 inch
Planting Spacing: Thin seedlings to 10 cm (4 in) apart for leaf lettuce sq. m (9/sq ft) and 6 to apart for Cos or Butterhead (4/sq ft - 1/sq ft), transplant Crisphead seedlings 10 to apart in the row (1/sq ft).
Row Spacing: 12 - 18 inches apart
History
The earliest depiction of lettuce is in the carvings at the temple of Senusret I at Karnak, where he offers milk to the god Min, to whom the lettuces was sacred. Lettuce was considered an aphrodisiac food in Ancient Egypt, and appears as such in The Contendings of Horus and Seth. Later, Ancient Greek physicians believed lettuce could act as a sleep-inducing agent. The Romans cultivated it, and it eventually made its way to France cultivated of the Papal Court at Avignon.Grigson, p. 312 Christopher Columbus introduced lettuce to the new world.
Cultivars
There are six commonly recognised Cultivar Groups of lettuce which are ordered here by head formation and leaf structure; there are hundreds of cultivars of lettuce selected for leaf shape and colour, as well as extended field and shelf life, within each of these Cultivar Groups:
