May.] THE HOT-IIOUSE. 403 



dener; for the pots or tubs so perforated will require to be watered 

 double as often as those that are free from earth-worms. 



When pots are plunged in the earth there ought to be a piece of 

 shingle, board, or slate placed immediately under the bottom of 

 each to prevent the roots from working out through the holes into 

 the surrounding earth; for although their rooting in this way will 

 cause them to grow more vigorously, it, to many, when taken up, 

 proves very injurious; therefore, to avoid this evil as much as pos- 

 sible the pots should be turned around, at least once a week during 

 the season, to break oft' the extending fibres that may have pushed 

 through those apertures at bottom. 



The hard-wooded kinds are generally not so much injured by 

 this as those of a more spongy texture, but it is ultimately of more 

 injury than service to every plant, and therefore ought to be 

 avoided as much as possible. 



THE HOT-HOUSE. 



Fire-heat should now be totally discontinued, except in the 

 more northern parts of the eastern states, where a moderate fire at 

 night, during the first week of the month, may in some seasons 

 be necessary; but still continue for the pine-apples a constant 

 moderate heat in the bark-bed agreeably to the intimations given 

 last month. 



Pine Jipplcs. 



The pine apple plants will now require frequent and moderate 

 refreshments of water, which, during the summer season, should 

 be given late in the afternoon; let this not be given in too great 

 quantities at any one time, for such would not only damp the heat 

 of the bark but also loosen the plants in the pots. 



As the weather increases in heat give air in proportion, both by 

 the front and roof-lights; but especially when the thermometer 

 rises above seventy degrees of Fahrenheit; for that is necessary in 

 order to have large and good fruit. When the weather gets very 

 hot the front lights must be kept open night and day, but the roof- 

 lights should be closed every night, particularly in cloudy weather, 

 to preserve the tan-pit from sudden rains, and ought to be opened 

 again early in the morning, especially in warm weather. 



General care of all Exotics in the Hot-House. 



Continue also to give plenty of air to the plants in all the hot- 

 house departments; supply them duly with proper waterings; and 

 if any want shifting into larger pots let it be done now as soon as 

 possible, keeping the whole clear from decayed leaves, &c If 



