562 THE GREEN-HOUSE [MAR. 



ten till two or three o'clock ; generally opening 

 them a little way about eight or nine, and shutting 

 up about four or five. Thus giving and reducing 

 air by degrees, as frequently hinted at in the For- 

 cing Garden for March and April : observing to di- 

 vide the quantity admitted equally in all parts of 

 the house, as there also particularly noticed, that 

 there may be a free and regular circulation among 

 the plants. 



Of Watering. 



Water must now be more freely applied than 

 heretofore directed, to all kinds of plants ; espe- 

 cially to the shrubby kinds beginning to take on a 

 fresh growth, and to bulbous-rooted flowers coming 

 into bloom ; both of which will require water every 

 two or three days, in pretty ample quantities. 

 Others may need a little but once in four or five 

 days, as yet ; the succulent kinds perhaps only 

 once a-week. But as said before, the plants should 

 all be regularly looked over, and have water as they 

 may seem to demand it, according to their respec- 

 tive habits. 



Of shifting or Potting the Plants. 

 The plants should generally be revised for this 

 purpose twice a-year ; that is, about the middle of 

 March, and the middle of August ; a week 6r two 

 sooner or later, according to conveniency. Indi- 

 viduals, no doubt, may be shifted at any time ; but 

 the above periods are the best, and most advisable 

 seasons for a general revision. Some plants may 



