62 FRITZ BAHR'S COMMERCIAL FLORICULTURE 



Fig 16 A PRIZE SHOW OF DAHLIAS. You needn't wait for Chrysanthemum 



time to arrange a show window or make a display. Dahlias will produce fine effects 



and almost equal the 'Mums in size and wealth of varieties 



of the plant is the very worst thing that could happen. It is the 

 easiest thing in the world to invite a dose of mildew, right now, 

 and while it is not always in your power to prevent this, it can often 

 be traced directly to improper ventilation. With Roses, it is, more 

 than anything, a matter of constant watching; open and shut your 

 ventilators twenty times a day if necessary. That is the only way 

 right now when we are gradua ly changing from Summer to Winter 

 conditions. 



You will never be successful if you merely open the ventilators 

 when things warm up in the early forenoon and leave them open 

 until late in the afternoon The man who brings his plants from 

 Summer into Winter without the least check will have the best 

 results. A touch of fire during chilly nights, proper ventilation, and 

 careful watering are what you want to provide from now on. 



CYCLAMEN AND BEGONIAS 



Plants that made but little headway during the early Summer, 

 are now, and from the middle of August have been, making up for 

 lost time, that is, if they were not in a stunted condition. They need 

 a shift as soon as you find the roots are starting to form a mat, and 



