108 PARSONS ON THE EOSE. 



be lighted at seven in tlie morning, and suffered to bum 

 out about the same hour in the evening, unless in frosty- 

 weather, when it must be kept burning till late at night, 

 so as to exclude the frost ; and for this purpose, double 

 mats should be placed on the lights. The thermometer 

 should not, hjjire heaty be higher in the day than 70° 

 during December, January, and February ; at night it may 

 sink to 35° without injury. The temporary rise in a sun- 

 ny day is of no consequence, but no air must be admitted 

 at such times, or the plants will exhaust themselves, and 

 im,mediately shed their leaves. When the sun begins to 

 have power, and in sunny weather, toward the end of 

 February, the plants may be syringed every morning 

 about 10 o'clock with tepid water, and smoked with to- 

 bacco at night on the least appearance of the Aphis, or 

 green-fly. To ensure a fine and full crop of flowers, the 

 plants should be established one year in pots, and plunged 

 in tan or sawdust, in an open, exposed place, that their 

 shoots may be well ripened ; the pots must be often re- 

 moved, or, what is better, place the pots on slates, to pre- 

 vent their roots striking into the ground. With the Re- 

 montant or Perpetual s, even if only potted in November 

 previous, a very good crop of flowers may often be ob- 

 tained, and a second crop better than the first ; for the 

 great advantage of forcing Remontant roses is, that after 

 blooming in the green-house or drawing-room, their young 

 shoots may be cut down to within two or three buds of 

 their base, and the plants placed again in the forcing- 

 house, and a second crop of flowers obtained. The same 

 mode may be followed also with the Bourbon, China, and 

 Tea-scented roses ; with the latter, indeed, a third crop 

 may be often obtained. Toward the end of March, when 

 the second crop of flowers is coming on, the plants may 

 be gradually inured to the air, by opening the sashes in 

 mild weather. This will make them hardy and robust. 

 Syringing should be practiced every morning and even- 



