=Radish= (_Raphanus sativus_) is a well-known plant, the root of which is a valuable salad; it has been cultivated from a remote period. It is now possible to have a supply the whole year round. Crisp, tender radishes with delicate flavor are only obtained by quick growth on rich, moist soil. The earliest crops are grown in frames on hotbeds, the crop being ready about five weeks from sowing. The earliest sowing outdoors can be made from December to February in sheltered sunny positions, the beds being covered with a thick layer of litter. There are round, oval and long-rooted varieties.
=Tomato= or Love-apple (_Lycopersicum esculentum_). The fruit of this plant is fleshy, usually red or yellow, divided into two, three or more cells containing numerous seeds imbedded in pulp. The tomato is one of a genus of several species, all natives of South America, chiefly on the Peruvian side. In the warmer countries of the United States, Europe and other countries in which the summer is warm and prolonged, it has long been cultivated for the excellent qualities of the fruit as an article of diet. The tomato is extensively grown as a field crop for canneries in the United States, and in the North is one of the chief winter-forcing crops. It is exceeded in acreage only by the watermelon and sweet corn among the minor vegetables. In the United States the crop exceeds thirty million bushels, nearly half of which is grown in Maryland and New Jersey.
=Turnip= (_Brassica rapa_). Although the turnip is of great value for feeding stock, it is not very nutritious, no less than nine to ninety-six parts of its weight actually consisting of water. One of the best early varieties is purple top strap leaf. Early flat Dutch is also good. The Swedish turnip, or _ruta baga_, which was introduced into cultivation from the north of Europe more recently than the common turnip, and has proved of very great value to the farmer, is regarded by some botanists as a variety of the same species, and by some as a variety of _B. napus_, but more generally as a variety of _B. campestris_, a species common in cornfields and sides of ditches in Britain and the north of Europe.
=Watermelon= (_Citrullus vulgaris_). The most popular melon in cultivation, is extensively grown in warm climates throughout the world, but most abundantly in southern Russia and the southern United States. It leads all minor vegetables in acreage, being surpassed only by the major vegetables, potato and sweet potato. Texas, Georgia, North Carolina and Missouri are the chief growers in the order named. Very anciently it was cultivated by Egyptians.