30 COLD FRAMES. 



raarliet-gardeners situated near large cities have 

 turned their attention to growing Lettuce under 

 glass, and they find it a profitable business. 



Large quantities of frame-lettuce are now an- 

 nually grown near New York, in frames similar to 

 those described for Caljbage and Tomato plants. 

 The only difference beuig, that they must be more 

 carefully constructed, and the soil should be of bet- 

 ter quality than that used for plants. 



About the 1st of November the Lettuce plants 

 are transplanted into the frames, putting not more 

 than fifty plants to each sash. When planted closer 

 than this they seldom form large heads, and have to 

 be sold as " basket-lettuce," instead of so much per 

 head, which makes quite a difference in the receipts. 

 Lettuce planted in cold frames in November will be 

 salable in April, and will generally sell readily at 

 from three to five dollars per hundred. Gardeners 

 usually make two dollars per sash on Lettuce raised 

 in this way, and the demand is always good when the 

 Lettuce is well-grown and carefully put up. With 

 bottom-heat, a crop is ready for market in nine weeks 

 from the date of planting. 



For Lettuce-growing, the " span frame " is becom- 

 ing popular among gardeners near New York. It 

 is similar in its construction to the ordinary frame, 

 only it is double, instead of single. A piece of joist 

 is placed along the centre, supported by posts driven 

 into the ground ; then cross-ties are mortised into 

 this joist every three feet on either side, and then 

 into the front boards. This will make the bed nearly 

 twelve feet wide, instead of six, being higher in the 



