56 ART OF GARDENING. 



MUSTARD (Sinapis), WHITE AND BLACK. 



Sinapis alba, White Mustard, and Sinapis nigra. Black 

 Mustard, are both easily cultivated. They may be sown 

 early in spring. Sinapis nigra is that from which mustard 

 is usually manufactured. White Mustard is used for stuff- 

 ing mangoes, and both varieties for salads. 



ONION (Allium Cepa). 



Onions will not grow on wet and stubborn soils; they 

 require a rich bed, with strong but old manure well mixed 

 in it to the depth of a spade. The bed should have a sunny 

 exposure, and be prepared early in the spring. The seed is 

 sown in drills about an inch deep, with an interval between 

 the drills of twelve inches. As they come up, thin them out, 

 if too thick, till several inches is left between the bulbs. In 

 the early stages of their growth, they may be hoed ; but 

 after they have assumed the bulb, they must be weeded by 

 hand. 



When onions are fully ripened, the tops begin to turn yel- 

 low and decay. 



The seeds of onions are also sometimes sowed late in the 

 spring, and pulled up in the fall, and dried, and kept over 

 winter, and set out in the following spring, and cultivated in 

 the same manner as onions from the seed. 



Among the approved varieties for the table are the White 

 Portugal, and Silver-skin, or Yellow Onion. 



PARSLEY (Apium Petroselinum) . 



There are several varieties, all easily cultivated. The 

 Common Parsley is the well-known pot-herb, and the curled 

 varieties form the familiar garnish that gives coolness and 

 brightness to many dishes. Sow the seed in drills about an 

 inch deep, and place the drills about a foot apart. Hoe fre- 

 quently to keep free from weeds. 



