92 THE BOOK OF CLIMBING PLANTS 



are to produce the next year's bloom almost at their full 

 length. A brief summary of the practice of the leading 

 growers in pruning the various classes is as follows : 



Hybrid, Perpetual, Tea and Hybrid Tea Roses should 

 be allowed to retain vigorous shoots to nearly their full 

 length, removing all weak wood. The Noisettes should 

 have the old, worn-out wood and the weak shoots re- 

 moved, Bourbons requiring practically the same treat- 

 ment. The climbing Polyanthas ought to have the 

 crowded shoots thinned out after flowering, taking out 

 at the same time all exhausted wood. Evergreen Roses 

 of the Sempervirens section may have the weak wood 

 taken out and the best of the shoots left, only taking 

 off the weak and unripened tips of these. The strong 

 growing Ayrshire Roses require a similar pruning, this 

 method also suiting the Musk Roses. The Wichuriana 

 Roses only require a slight thinning out and shortening 

 of the longer branches. The Boursaults should have the 

 tips shortened in spring, and the weak growths taken 

 out with the worn-out wood after flowering. 



THE CLIMBING ROSE UNDER GLASS 



It is unnecessary to say much about the Rose under 

 glass, as all are aware of its beauty and the value of the 

 flowers it produces. Marechal Niel is, of course, a 

 general favourite, and is more grown than any other 

 in this fashion, but almost any of the Tea or Hybrid 

 Tea Roses are of high value for cultivating under glass. 

 They do best planted out, but may also be cultivated in 

 pots, where they require liberal treatment. The attacks 

 of mildew, aphides and red spider are those most to be 

 feared in the case of Roses under glass, and the first is 

 one of the worst enemies, being frequently caused by 

 the free ventilation necessary for other plants beneath. 

 The ventilation ought, however, to be given so that cold 



