134 ALLIACEOUS PLANTS. 



skin, as its name implies, has a skin of pure, silvery white- 

 ness ; and is, in other respects, very dissimilar to the present 

 variety. 



When extensively cultivated for the market, it should be 

 sown and subsequently treated as directed for the Danvers 

 Onion. The yield per acre varies from four to six hundred 

 bushels. 



ROCAMBOLE. 



Allium scorodoprasum. 



This plant is a half-hardy perennial from Denmark, 

 partaking of the character of both the leek and garlic. The 

 bulbs or cloves are similar to those of the common garlic. 

 Leaves large ; flower-stalk about two feet high, contorted or 

 coiled towards the top, and producing at its extremity a 

 group of bulbs, or rocamboles, intermixed with flowers. 



Propagation and Culture. It is propagated by planting 

 either the underground bulbs, or the small cloves, or bulbs, 

 that are produced upon the stem of the plant. These should 

 be set in April, in drills ten inches apart, and four or five 

 inches asunder in the drills. In the following August they 

 will have attained their full size, and may be used immedi- 

 ately ; or they may be taken up, spread to dry, tied in bunches, 

 and housed, for future consumption. All the culture re- 

 quired is the removal of weeds, and the occasional stirring 

 of the soil. 



Use. The bulbs or cloves have the odor and flavor com- 

 mon to alliaceous plants, and are used as the shallot and 

 garlic. 



There is but one variety. 



