398 VEGETABLE FORCING 
Fig. 139.—A coldframe plat near Norfolk, Va. Note method of ventilating. 
spring lettuce when the latter crop is well advanced. 
After the lettuce is cut, all of the ground is devoted to 
beans. Any of the bush or snap varicties may be used. 
The wax-podded type is generally most popular. 
Beans as a commercial frame crop do not offer great 
possibilities, though it is much better to grow them than 
to have the frames idle. 
Beet.— Though the beet as a frame crop is not generally 
regarded as so profitable as the radish and lettuce, it is a 
favorite crop with some growers. It is usually grown 
without the employment of artificial heat. Sometimes 
the seed is sown in the summer and the crop protected in 
frames until Thanksgiving or later, if the climate is not 
too severe. 
At Norfolk it is a common practice to sow from De- 
cember 15 to January 15, and to protect the plants with 
glass until about April 1, when the sash are transferred 
to cucumber frames. The seedlings may be started in 
separate beds and transplanted into the frames. The 
early maturing varieties, such as Early Egyptian and 
Early Model, are employed for forcing. See page 359 
for additional notes. 
