78 



THE CULTURE OF POT-PLANTS 



importance of keeping the soil moist and of spraying during 

 the summer. There are also several fungoid diseases which 

 are sometimes troublesome. In their case spraying with a 

 weak solution of permanganate of potash may be sufficient, 

 but in a serious outbreak the affected plants should be burned 

 in the hope of saving the others. It is of little use trying 



Fig. 31. — Lifting a layered Violet runner with the trowel. 



to grow violets in a room, because of the dust and other 

 impurities in the air, as well as of the dryness; but they 

 may be brought in when they are flowering. Among the 

 best single varieties are La France, Princess of Wales, 

 Victoria Regina (early), and White Czar; and among the 

 doubles Comte de Brazza (white), de Parme, Marie Louise, 

 and Neapolitan (of rather weak habit, but with fine lavender 

 and white flowers). 



