198 VEGETABLE FORCING 
sary to make a new planting. At any rate, this is the 
policy followed by most gardeners. 
Some interesting experiments have been made on the 
growing of forcing roots from seed. The Wisconsin 
Experiment Station obtained good results from sowings 
made broadcast in August. The seedlings were trans- 
planted into rich soil the following spring, when they 
made roots large enough for forcing in one year. 
Fig. 67.—A large rhubarb root suitable for forcing. 
Lazenby, of the Ohio State University, found that seed 
sown about April 1, in very rich, moist, sandy loam, pro- 
duced plants of forcing size in one season. The rows 
were 2 feet apart and the plants thinned to 15 inches and 
given the most careful attention. By August 15 some of 
the stems were 20 inches long and the leaf blades a foot 
