CHAPTER 21 



CYCLAMEN (Cyclamen persicutn^^ 



Cultural Considerations. Greenhouse men prefer 

 to sow the cyclamen seed in September and not in 

 spring. In March, the seedlings are transplanted 

 from a two-inch to a four-inch pot and put in a 

 cold frame until large enough to go to a six-inch pot. 

 During the summer, plenty of ventilation and shad- 

 ing should be provided and the plants frequently 

 syringed. In the fall, they are brought into the 

 greenhouse (fig. 52) and some heat provided. The 

 winter temperature should average ^^ to 60 degrees 

 F. until the period of blossoming is over. As the 

 leaves turn yellow, the pots are placed in a cool 

 house, water withheld and the period of rest in- 

 duced. However, a little water is given from time 

 to time to prevent the bulbs from shriveling. 



Diseases of the Cyclamen 

 Cyclamen are subject to but few serious diseases. 



Root Rot 



Caused by Thielavia hasicola Zopf. 



The disease was reported by Sorauer* as being 



*Sorauer, P., Ztschr. Pilanzenkrank. 6: i8, 1895. 



248 



