ASPARAGUS. 51 



From seventy-five to one hundred plants may be set 

 in a light of 3x6; when they start to grow this 

 number of roots will yield from fifty to sixty spears 

 a day. The temperature should be kept above sixty 

 degrees, and on mild days the bed should be copious- 

 ly watered and aired. It should be covered with 

 straw mats at night to protect against frost. In very 

 cold weather a bank of horse-manure, placed around 

 the outside of the frame, will help to keep the tem- 

 peratm-e up to at least sixty. 



