CHAPTER XX 



PERENNIAL CROPS 



Asparagus, Artichoke, 



Rhubarb, Sea-Kale. 



Dock, 

 Sorrel, 



THE management of perennial crops differs from 

 that of other vegetable -gardening crops, in the fact that 

 they are more or less permanent occupants of the ground, 

 and therefore must "be given an area to themselves where 

 they will not interfere with the customary plowing and 

 tilling; in the fact that the chief tillage and care are 

 required early and late in the season; and also because 

 the fertilizing is secured chiefly by surface dressings in 

 spring and fall. It seems to be advisable, therefore, 

 for cultural reasons, to place these vegetables in a 

 group by themselves, although otherwise they have 

 little in common. All cultural classifications are more 

 or less arbitrary. 



ASPARAGUS 



A deep, rich, fertile, moist, cool soil, a warm exposure, 

 thorough preparation of the land, heavy manuring, 

 thorough tillage in late fall and early spring, are general 

 requisites of asparagus culture. The plants should be 

 allowed to become well established before a crop is cut, and 



BB (433) 



