May.] THE GREEN-HOUSE. 399 
Grass and Gravel Walks. 
The grass-walks and lawns, should now be duly mowed and roll- 
ed; otherwise, the grass will soon grow rank and unsightly; end 
where plantain or any other kind of weeds, are mixed therewith, 
they ought to be picked or grubbed out, or else, many of their seeds 
will ripen, and thereby increase their species, which will overpower 
the grass and render the verdure less agreeable. 
The gravel walks should also be kept in complete order, pre- 
serving them always free from weeds, and having them occasion- 
ally swept to clear away all loose litter; and likewise well rolled, 
generally once a week, but particularly after heavy showers of rain, 
which will consolidate them, and render the surface smooth and 
even, 
THE GREEN-HOUSE. 
Air and Water. 
During the first ten days of this month, and, in the middle 
states, the last week of April, the doors and windows ought to be 
kept open, night and day, in order to harden and prepare the plants 
for a removal into the open air; an extraordinary change of wea- 
ther, however, may sometimes render it prudent to close them at 
night, but that should not be done at this season, except in cases of 
necessity. 
Water must now be given to every plant, according to its nature 
and in proportion to its necessity, as observed last month; the 
oranges, lemons, myrtles, and other woody kinds, will require it 
frequently; it is impossible to say how often; the state of the earth 
in which they grow, will readily denote that; it should always be 
kept moist but not wet. The succulent tribe must yet get it but 
sparingly. 
Shifting. 
Such plants as were not removed into larger pots or tubs, in the 
preceding months, and that still require it, may now be shifted as 
directed in page 361; but this must be done in the first week of 
the month, keeping them afterwards in the shade, till they begin to 
grow freely. 
Loosen the earth in the top of the pots and tubs, and refresh with 
new compost, such as had been neglected in April. 
