ON THE CULTURE OF ROSES. 13j 



however, in securing a succession of other tender herbaceous and 

 annual plants, by cuttings taken off in September or October; 

 among which I may mention particularly, one of the Coreopsis 

 tinctoria: this is nowas fine and healthy a young plant as I ever be- 

 held. I only wait for a favourable opportunity of prosecuting my 

 enquiries, in order to furnish that information which may enable 

 other horticulturalists to extend their researches, which, if pursued 

 with patience, and in a spirit of true philosophical investigation, 

 may, at no remote period of time, lead to discoveries as interisting 

 to the lovers of science, as they will be gratifying to those, whose 

 chief object it is to add to or extend the beauties of the green- 

 house and flower garden. 



ARTICLE VI. 

 ON THE CULTURE OF DIFFERENT SPECIES OF ROSES. 



BY AN AMATEUR 



In the many excellent observations, on the cultivation of the rose 

 which have appeared, I have frequently observed that the rules, 

 though most excellent in themselves, as applied to many species 

 of roses, have usually been too general, and have proceeded on 

 the principle of considering most species as requiring the same 

 modes of treatment, while the great difference in the habits, na- 

 ture, places and manner of growth, seem to me to point out im- 

 portant variations in the soil, situation, and mode of cultivation 

 required by many of the different species. I therefore would 

 state some of the differences and places of growth, in a wild 

 state, of some of the species, and the variations they seem to sug- 

 gest in the culture. Though plants are greatly altered by culture 

 yet they generally retain a considerable bias to the soil and situ- 

 ation for which, by nature, they are formed ; and it is usually 

 within a certain range only, of what I would call, their natural 

 habits, that they are capable of improvement by cultivation. 



In taking a cursory view of the difference, which there ap- 

 pears to me, to be among some of the species of roses, I shall, to 

 make myself better understood, separate the genus into five di- 

 visions. 



In the first division and place Rosa, spinosissima and its varie- 

 ties, the R. lutea, sulphiirea, and cinnamomca which, from their 

 slender shoots, small and numerous thorns, and fibrous roots 



