The onion is one of the important market-garden and truck crops in the United States and is very generally grown in home gardens. It thrives best on alluvial and drained muck soils under a temperate climate, but may be grown under a very wide range of soil and climate conditions. Onions are grown to perfection on the alluvial soils of the Nile River Valley in Egypt, under the sea breezes of the South Sea Islands, on the delta lands along the sea coast, on sandy uplands, in the arid regions under irrigation, and on reclaimed swamp lands. There is perhaps no extensive area in the United States or its possessions where the onion, in one or more of its forms cannot be successfully grown, at least for home and local use.
Any watermelon grower can grow their own seed with very little trouble, as a small number of choice melons will furnish enough seed for planting his crop; in fact, four or five average melons will yield a pound of seed. The proper method of selecting the seed melons is to go through the field prior to the first picking and mark a number of melons having the desired type, color, and general characteristics. In making the selection, vigor and freedom of the vine from disease should be taken into consideration. One of the best methods of marking them is to tie pieces of white cloth to the stems of the melons. The marked melons should be allowed to remain on the vines until fully ripe, then carried to a safe place, and after 2 or 3 days of additional ripening should be opened and the seed separated from the pulp.