CULTURE UNDER GLASS 83 



After the sowing, the greenhouse should 

 be kept as cool as possible, admitting air 

 day and night as long as the weather will 

 permit. The cooler the temperature of 

 the house when the plants are started the 

 stronger and healthier they become. Late 

 in the fall some heat is necessary. The 

 temperature at night, however, should not 

 be higher than 40 to 44 degrees Fahren- 

 heit; otherwise the young plants will be- 

 gin to bloom early before the roots have 

 had a good start. The winter sweet peas, 

 if sown in August or later, and properly 

 cultivated, should be at least thirty inches 

 high before the blooms appear. Some- 

 times during warm and bright days in the 

 fall the plants show a tendency to bud 

 very early. In this case, the buds should 

 be picked off as soon as they appear. 

 When the plants are between two and a 



