POT-CULTURE. 191 



Provence Eoses on their own roots, which, when 

 required for forcing, may at once be removed from 

 the plunging-bed, after having remained there one 

 summer, to the forcing-house ; those required for 

 exhibition only, may also remain there till near 

 the blooming season ; when, if it is wished to re- 

 tard them, they may be placed under a north wall ; 

 if to accelerate, they may be removed to the green- 

 house, or to any pit or frame under glass. 



With the exception of the Moss and Provence 

 Roses, which are, and always will be, favourites 

 for forcing, Summer Roses are not so eligible for 

 pot-culture as the Autumnal Roses : they bloom 

 but once, and, if intended for exhibition, it is so 

 extremely difficult to have them in perfection on 

 any given day : if the season be cold and cloudy it 

 is most difficult to bring them forward, as fireheat 

 in summer is injurious to roses brought from the 

 open air; and if dry and hot, it is equally difficult 

 to retard them ; at least, this can be done only for 

 a very short period. 



Moss and Provence Roses that have been forced 

 have generally been thought to require a season's 

 rest ; but with the following treatment this will not 

 be required. Presuming that they have bloomed 

 in February or March, they should have their 

 shoots shortened to within two or three buds, 

 repotted and placed in a cold frame, plunged in 

 the before-mentioned materials, and, towards the 

 end of April, placed in the open air, as before 



