GREEN-HOUSE PLANTS AND POTTING. 151 



to keep it a little above freezing, say from thirty-six to forty 

 degrees, in a cold night ; but to forward plants to an early 

 flowering, from forty to forty-five degrees is the lowest it 

 should be allowed to fall to. The heat in the day-time, when 

 the sun shines, may be allowed to rise fifteen degrees higher 

 than at night. 



In conclusion, I must again particularly recommend that 

 the plants be kept cleansed from all dead leaves, and other 

 filth, that may either be attached to the pots or plants : the 

 pots must be either washed or new ones used in shifting, 

 about the beginning of March, so that they have a clean and 

 healthy appearance ; the shelves should be often cleaned dur- 

 ing the winter, and the pots often moved, to prevent water 

 from collecting under them, which stagnates, and injures the 

 roots. It is also very requisite that a quantity of water, of a 

 proper temperature, be always kept in the house for watering 

 the plants, and to be at hand in case of fire. Every attention 

 should be paid to the hottest end of the flue ; no chips, or 

 shavings, should be left near it, which, in many cases, I be- 

 lieve, have been the cause of the destruction of the house by 

 fire. The house should be examined during the winter, and 

 if any parts, in consequence of the severe heat have given 

 way, they should be immediately repaired. 



Anx. 5. Descriptive List of Green-house Plants. 

 In forming a Descriptive List of green-house plants, I have 

 selected those kinds which are of easy culture, and free flow- 

 ering. Some attention has also been paid to select such kinds 

 as would give a variety of flowers during the season, with the 

 addition of the list of the Geranium, Camellia, &c., that are 

 to follow. No particular attention has been paid to those 

 plants of a recent introduction, unless they have been proved 

 worthy of notice as standard varieties; the principal object 

 of the list being to describe such plants only, as are hoped to 

 be worthy always of a place in the green-house. 



