HORTICULTURAL JOURNAL. 261 



do well in half decayed turves from an old pasture, mixed with 

 about a fourth part of well decayed sandy leaf soil. In some cases 

 it is difficult to procure fibrous or turfy soil, and that obliged to be 

 used, is of a loose and fine texture. The plants will thrive very 

 well in such, if kept in small and well drained pots. Whenever 

 repotting is necessary, the new pots should be but little larger than 

 the previous ones. In ordinary cases the Rhododendron does not 

 require repotting often. Unless in cases of very rapid growth, they 

 will flower profusely, and do well in the same pots for several 

 years. 



Most of the kinds allied to R. arboreum are of vigorous growth,, 

 frequently growing 20 ft. high — a few of them are exceptions. For 

 soil and general culture, the remarks on the last division wilj be 

 applicable. When they get large they may be put into large wooden 

 tubs, and stowed away during the winter with the orange treeg, 

 and treated in the same manner ; a principal item in that treat- 

 ment being to keep them tolerably dry. They are very apt to be 

 much injured by the thrip and scale. Occasional fumigations with 

 tobacco will stop the ravages of the former, and slight syringings of 

 soft soap dissolved in lime water, will keep them clear of the 

 other. 



I have only had the favanicum in cultivation two seasons ; but it 

 seems to do very well with much the same treatment as I give the 

 arboreum. 



There are now many of the new species imported and flourish-, 

 ing in the different horticultural cities. During the past season sevn 

 eral very fine ones have been exhibited in flower at our Societies 5 

 meetings. I might particularize R. javanicum from the collection of 

 Mr. Buist ; R. Gibsonii from Mr. Cope's; and some fine hybrids be- 

 tween some Rhododendron and Azalea sinensis, I believe from the 

 collection of Mr. Sherwood. 



A Philadelphia Gardener. 



