62 AMERICAN GARDENER. 



105. Of the different plants suitable for a 

 green-house, and of the particular treatment of 

 each, I shall speak under the head of FLOWERS ; 

 and shall, in this place, only add some directions 

 as to management, which are applicable to the 

 whole assemblage. 



106. Air is the main thing, after the keeping 

 out of the frost. Air is given by pushing up, or 

 drawing down, the Lights, which form the toji 

 or roof of the green-house. Always give air 

 when there is no fear of frost. Give heat and 

 air at the same time, if the weather be not mild 

 enough to dispense with the heat. For without 

 air, the plants will become sickly. They have 

 lungs as well as we ; and, though they may live, 

 for a while, without air, they will be an eye-sore 

 instead of a delight to the beholder. If the sides 

 and front^ as well as the to/i of the green-house, 

 be ot glass, (which is best,) then air may be gi- 

 ven there, instead of giving it by pushing up, 

 or pulling down, the lights at to/i. 



107. The plants, of whatever sort or size, 

 must be in what the English call Jiots, and what 

 the Americans call jars. Perhaps I may as well 

 speak, once for all, about the shape and size, and 

 manner of planting in, these pots. The shape is 

 generally well known ; but, the pots ought never 

 to be glazed. Plain earthen pots are best as well 

 as cheapest. There must be a hole in the middle 

 of the bottom of every pot, or no plant will live 

 in it for any considerable length of time, and will 

 never grow in it at all. This hole should be in 

 proportion to the size of the pot ; and the pots 

 may be from 4 inches to 18 inches over at top., 

 and from 4 inches to 18 inches deep ; being one 



