Propagation and Culture.—"Propagation is always effected by planting portions of the roots, which grow readily. The soil most conducive to it is a deep, rich, light sand, or alluvial deposit, free from stones or other obstructions; as, the longer, thicker, and straighter the roots are, the more they are valued. There is scarcely another culinary vegetable, of equal importance, in which cultivation is, in general, so greatly neglected as in this. It is often found planted in some obscure corner of the garden, where it may have existed for years; and is only visited when needed for the proprietor's table. The operation of hastily extracting a root or two is too often all that is thought of; and the crop is left to fight its way amongst weeds and litter as best it may."—M'Int.
A simple method of cultivation is as follows: Trench the ground eighteen inches or two feet deep, and set the crowns or leading buds of old roots, cut off about three inches in length, in rows a foot apart, and nine inches from each other in the rows; cover six inches deep, and cultivate in the usual manner during the summer. The shoots will soon make their appearance, and the large leaves of the plant completely occupy the surface of the bed. After two seasons' growth, the roots will be fit for use.
Taking the Crop.—Its season of use is from October till May; and, whenever the ground is open, the table may be supplied directly from the garden.
For winter use, take up the requisite quantity of roots in November, pack them in moist sand or earth, and store in the cellar, or in any situation out of reach of frost.
Use.—The root shredded or grated, with the addition of vinegar, is used as a condiment with meats and fish. It has an agreeable, pungent flavor; and, besides aiding digestion, possesses other important healthful properties.
LETTUCE.
Lactuca sativa.
Lettuce is said to be of Asiatic origin. It is a hardy, annual plant, and, when fully developed, from two to three feet in height, with an erect, branching stem. The flowers are compound, yellow, usually about half an inch in diameter; the seeds are oval, flattened, and either white, brown, or black, according to the variety,—nearly thirty thousand are contained in an ounce, and their vitality is retained five years.
Soil.—Lettuce succeeds best in rich and comparatively moist soil; and is also best developed, and most crisp and tender, if grown in cool, moist weather. A poor soil, and a hot, dry exposure, may produce a small, tolerable lettuce early in spring, or late in autumn; but, if sown in such situations during the summer months, it will soon run to seed, and prove nearly, if not entirely, worthless for the table. The richer the soil may be, and the higher its state of cultivation, the larger and finer will be the heads produced; and the more rapidly the plants are grown, the more tender and brittle will be their quality.