70 MASSACHUSETTS HORTICULTURAL SOCIETY. 



In pottiiifj large plants the soil should never reach higher than 

 to an inch below the rira of the pot ; for there should be ample 

 room for giving an abundance of water and liquid manure. 



After the plants are potted they are placed under ti'ces, or, what 

 is much better, a tent made of cotton cloth, wliere they can have 

 plenty of air and at the same time be shaded from the hot sun. 



They remain here about a week, or until the}' seem to have re- 

 covered, when they are taken to the same ground they grew in and 

 plunged to the rim of the pot in the soil. As the plants begin to 

 grow afresh the}' are given plenty of water that they ma}- never be- 

 come dry. The young roots soon reach the sides of the pot, after 

 which liquid manure may be freely given so long as the bu.ls are 

 growing. 



As cold nights approach, the plants are placed under glass, 

 even before actual frost appears. I think it a mistake to try and 

 keep the plants out until the actual appearance of hard frosts : 

 for we have many nights not cold enough to freeze but cold 

 enough to check their growth, and this checking of the sap is an 

 acknowledged cause of mildew wherever it appears. All through 

 the early fall we have days that are hot enough for midsummer 

 and nights nearly cold enough for frost. This kind of weather 

 cannot be conducive to health in the chrysanthemum ; for it is a 

 plant that must be kept growing from the time the cutting is struck 

 until it has flowered. 



For a long time after placing them under glass they require no 

 artificial heat and should be very freely ventilated through the 

 day. In cold, cloudy weather it is best to introduce a little heat 

 into the house if only to dry out the dampness. 



Soon after they have been brought in, the black aphis will 

 make its appearance and should be persistently fought with 

 tobacco fumes as long as the plants remain inside. 



For those who have no greenhouse but wish to cultivate the 

 chrysanthemum, we advise procuring young healthy plants in May 

 and treating them in a way similar to that already described until 

 the time for housing ; after which they may be taken in on cold 

 nights and placed out of doors through the day. 



As liouse plants they should be kept well watered, syringed as 

 often as possible (care being taken not to wet the flowers), and 

 kept in the coolest and airiest place to be found. 



