IV PREFACE 



I have often seen annuals planted in 

 the same bed as roses, but this is very 

 detrimental to the plants. The rose 

 should have its own special bed and its 

 own special treatment. 



Keen observers will have noticed that 

 the new leaves of some varieties have a 

 reddish colour, while in others they re- 

 main a pale green. This is not a char- 

 acteristic of any particular variety, but 

 is caused by a very active process of res- 

 piration or breathing, which is most 

 active always in young organisms. 



