CULTURE OP THE ROSE. 65 



treatment is similar to that of summer cuttings. They 

 must be closely watched, and those that show signs of 

 mould or decay at once removed. 



After tjie callus is formed, they will bear more air. 

 When rooted, they should be potted into small pots, and 

 placed on a hot-bed of which the heat is on the decline. 

 Towards the end of May, when the earth is warmed by 

 the sun, they may be turned out of the pots into the open 

 ground, where they will soon make strong plants. 



Many American nursery-men strike rose-cuttings in 

 spring, in pure sand, over a hot-bed or a tank of hot water, 

 in the close air of the propagating-house. They must be 

 potted immediately on rooting, as the sand supplies them 

 with nothing to subsist on. We have seen many hundreds 

 rooted in this way with scarcely a single failure. 



The management of difficult cuttings requires a certain 

 tact, only to be gained by practice and observation ; and 

 the gardener who succeeds in rooting a pot of cuttings of 

 the Moss Rose has some reason to be proud of his success. 



With respect to the relative value of roses propagated 

 by the methods above described, the most experienced 

 cultivators are unanimous in the opinion, that those raised 

 from layers and from cuttings of the ripe wood, without 

 artificial heat, are superior in vigor and endurance to those 



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