ESSAY ON ROSE GROWING. 87 



ESSAY 



ON 



ROSE GROWING IN WINTER, 



BY PETER HENDERSON. 



(Read before the New York Horticultural Society in 1881, with some 

 additions and alterations made in 1883.) 



THE intense interest now so generally taken in the cul- 

 ture of the Rose, not only for outside decoration, but 

 for the production of Rose buds in winter, has induced 

 me to attempt a detailed account of the methods of cul- 

 tivation practised in the vicinity of New York City, which 

 is believed to be unequaled in any other part of the 

 world, particularly in the methods in use for the winter 

 forcing of the Rose. For this purpose, strong, healthy 

 cuttings are put in to root at any time from September 

 to January. We keep the sand in our cutting benches 

 about 65 or 70 degrees Fahr., with the temperature of 

 the house 10 degrees less. Rose cuttings, under these 

 conditions, will root in from twenty to twenty-five days, 

 and are then potted in any good soil in two and a half 

 inch pots, and placed in a green-house having a night 

 temperature of about 55 degrees, with 10 to 15 degrees 

 more in the daytime. (See article on Propagation of 

 Plants, p. 75.) 



The young Roses are regularly shifted into larger pots 

 as soon as the " ball " gets filled with roots, great care 

 being taken that the plants at no time get pot bound. 



