290 OBSERVATIONS ON THE CULTIVATION OF ROSES IN POTS. 



prising to find they thrive so much better under glass than when 

 exposed to all the changes and severities of the weather. The hardy 

 kinds, however (except a few he introduced by way of varying the 

 colours to a greater degree), certainly need not to be grown under 

 glass ; they merely require plunging ; and an airy yet sheltered 

 situation in the garden should be chosen. 



" Suggestion for growing Tea Roses near London. — Hitherto the 

 Chinese and tea-scented Roses have not been grown with much 

 success in the immediate neighbourhood of London, nor in the north 

 of England, when planted in the open ground. It is notorious that 

 no collection, however small, can be complete without some portion of 

 these Roses ; and it is the vexatious disappointment alone, attendant 

 upon their constant failure, that could have caused their growth, in 

 certain localities, to have been given up. Doubtless, in some in- 

 stances, an impure atmosphere may have caused their failing ; but I 

 humbly submit whether, if carefully examined, the soil and situation 

 would not often propound the difficulty. The ease, then, with which 

 we can remedy these disadvantages, when the plants are grown in 

 pots, leads me to propose their cultivation in this way to those with 

 whom they have not hitherto succeeded ; and there is good ground to 

 believe they will succeed well in this manner, and especially if grown 

 under glass. Except for forcing, cold pits are perhaps preferable to 

 a house, where they should be kept close to the glass, and plenty of 

 air given. Thev should have the advantage of dews and soft showers, 

 the lights in summer being merely used to protect them from cold 

 nights or rough weather, and, by help of mats or canvas, from a hot 

 sun. 



" Methods of Growth. — Among Roses there are two distinct kinds 

 of plants' — worked plants (comprising the budded and grafted ones), 

 and such as are grown on their own roots. Both succeed well in 

 pjts ; the former, perhaps, produce the finest flowers, but should be 

 grown on very short stocks ; the latter form large and handsome 

 plants. The greater part of the plants should be grown to bloom in 

 the natural season, from May till November; the others, as forced 

 Roses, blooming from March to June, which will be more particu- 

 larly alluded to hereafter. 



" Transplanting and Potting. — Early in autumn, immediately 

 after rain, is the most favourable time to remove both worked plants 



