The lettuce plant has a short stem initially (a rosette growth habit), but when it blooms the stem lengthens and branches, and it produces many flower heads that look like those of dandelions, but smaller. This is called bolting. When grown to eat, lettuce is harvested before it bolts. Lettuce is used as a food plant by the larvae of some Lepidoptera. The largest lettuce head, of the Salad Bowl cultivar, weighed 11 kg (25 lb) grown by Colin Bowcock of Willaston, England, in 1974
Planting takes place warm in a glass or behind a window, small or large earthenware pots. If you sow in small clear containers, you reduce the risk of the fungus from melting decimate your culture. The method is to use an old aquarium lined with electric heating and a bed of gravel or sand, can perform seeding \"hot\" without having to raise the temperature of a room. Like planting a temperature between 18 and 20 °. Once the seedlings are seizable you subculturing in small peat pots, paper or plastic: The diameter of the container must be 4 or 5 cm. It is in a good land geranium that lettuces grow best.
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