September 12, 1S72. ] 



JOURNAL OF HORTICULTURE AND COTTAGE GAEDENEE. 



213 









WEEKLY 



CALENDAR. 

















Day Day 





Average Tempera- 



Rain in 



Sun 



Sun 









Clock 



Day 





Month Week. 



SEPTEMBER 12—18, 1S72. 



ture near London. 



43 years. 



Rises 



Sets. 



Rises. 



Sets. 



Age. 



Sun. 



Year. 











Day. 



Night. 



Mean. 



Days. 



m. h. 



m. h. 



m. h. 



m. h. 



Days. 



m. s. 







12 



Th 



Glasgow and Dublin Horticultural Shows. 



69.1 



44.8 



57.0 



16 



SI af5 



21 af6 



21 4 



41afll 



9 



3 58 



256 





IS 



F 



Ttnry St.. F.dTrmndfl Horticultural Shnw. 



68.4 



45.7 



57.0 



19 



S3 5 



19 6 



8 5 



morn. 



10 



4 19 



257 





14 



S 





67.0 



46.1 



56.5 



22 



85 5 



17 6 



43 5 



8 1 



11 



4 41 



258 





15 



Sun 



16 Sunday after Trinity. 



67.5 



45.9 



56.7 



16 



86 5 



14 6 



9 6 



32 2 



12 



5 2 



259 





16 



M 





68.4 



46.8 



57.6 



16 



38 5 



12 6 



29 6 



4 



13 



5 23 



260 





17 



Trj 



Warwick Horticultural Show. 



68.9 



44.9 



56.9 



16 



89 5 



9 6 



46 6 



27 5 



O 



5 44 



261 





18 



W 



Royal Horticultural Society, Fruit, Floral, 



68.2 



46.5 



57.4 



19 



40 5 



7 6 



8 7 



53 6 



15. 



6 6 



262 









[ and General Meeting. 

























From observations taken near London during fortv-three years, the average day temperature of the week is 68.2° ; ant 



its night temperature 





45.8°. The greatest heat was 88", on the 13th, 1865 ; and the lowest cold 29°, on the 17th, 1840. The greatest fall of rain was 0.90 inch. 





1 



CULTURE OF EOSES IN POTS. 



jpaJ^ilr AN T of the correspondents of this Journal 

 write about the Rose. It is a pleasant 

 theme ; and it is pleasant at the Roseshows 

 to admire the long lines of superb trusses 

 neatly set up in fresh green moss, when each 

 eager admirer longs to produce such exam- 

 ples in his own garden. 



The soil where my lot is cast is not at 

 all adapted for Rose-culture. It is of a 

 light, sandy nature, with a dry gravel sub- 

 soil, so that the culture of the Rose out of doors is carried 

 on under highly disadvantageous circumstances. We are 

 thus driven to a system of culture under which we can 

 meet our friends on more equal terms, and that is, culture 

 in pots. This method gains in favour yearly, and it is 

 well that it is so, for properly cultivated Rose bushes in 

 pots are most beautiful objects, and are much more under 

 the control of the cultivator than plants grown in the 

 open border. What noble objects are the immense spe- 

 cimens, grown in large pots and covered with scores of 

 superb flowers, exhibited at the metropolitan exhibitions ! 

 Such plants can only be obtained by a few persons of 

 large means, and are far beyond the reach of ordinary 

 growers. Excellent little specimens can be grown in 

 8-inch pots, and when furnished with from six to nine 

 flowers of high quality and with deep green handsome 

 foliage, nothing can equal them for decorative purposes 

 in the greenhouse and conservatory in April and May. 



To grow Roses well in pots they require liberal treat- 

 ment, good soil, plenty of water at the roots, and to be 

 kept free from mildew, red spider, green fly, and the 

 worm in the bud. Orange fungus, which seems to pester 

 "D., Deal," and the Rev. W. F. Radclyffe, has never 

 appeared at this place. Mildew can be destroyed by 

 dusting the affected parts with flowers of sulphur. If 

 the plants are syringed once or twice a- day no red spider 

 will appear. Green fly should be destroyed on its first 

 appearance by fumigating the house with 'tobacco smoke. 

 Badly-cultivated Rose trees in pots are an eyesore any- 

 where, and will never produce satisfactory blooms. 



Pot Roses may either be worked on the Briar or 

 Manetti stock, or grown on their own roots. Perhaps 

 the largest proportion are worked on the Manetti ; it is 

 an excellent stock for nearly all the varieties, and it is 

 specially adapted for early forcing. 



The plants that are required for forcing should be in 

 their blooming pots by the end of September or early in 

 October. In potting, the old and exhausted soil should 

 be partially removed from the roots with a pointed stick, 

 and the plants repotted in the same-sized pot, or in one 

 a size larger ; this will depend upon the state of the 

 roots and the health of the plants. Strong healthy plants 

 which have well filled their pots with roots should have 

 a larger pot. A suitable compost is turfy loam four 

 parts, one part of decayed manure, a small proportion 

 of quarter-inch bones, and a little sand if the loam is of 

 a clayey nature. At the time of potting the plants will 



No. 698.— Vol. XXIII., New Series. 



be in leaf, and to prevent the foliage from dropping off 

 syringe them two or three times a-day until fresh root- 

 lets are formed. They will do out of doors as well as 

 under glass at this time, except Tea Roses, which ought 

 to be grown in a glass house ; an airy span-roofed pit is 

 a good place for thern. 



When the leaves change to a yellow hue and fall off, 

 remove the plants to a place where they can be sheltered 

 from heavy rains, but they must not become quite dry 

 at the roots. The plants that are required for forcing 

 very early should be pruned as soon as the leaves fall, 

 and it is best to prune when the roots are comparatively 

 dry, as otherwise the cut parts will bleed. 



As soon as the buds start into growth remove the plants 

 to a house into which ah can be admitted freely, and 

 place them close to the glass. The temperature must 

 be regulated by the time the plants are required to be 

 in flower ; 45° at night will be liigh enough to start with, 

 gradually raising the temperature to 55° or 60°. A high 

 temperature is not desirable for the Rose, unless air can 

 be admitted freely. When the young shoots have grown 

 a few inches it is sometimes necessary to thin-out some of 

 them to prevent crowding ; this should not be neglected, 

 for if the shoots crowd each either they will be drawn-up 

 weakly, and the flowers will not be of good quality. 

 When fairly started into growth and pushing vigorously, 

 manure water should be applied to them. The best 

 manure for this purpose is Mr. W. Paul's Rose manure, 

 manufactured by the celebrated Rose-grower of Waltham 

 Cross. It is easily applied ; a small portion of it is spread 

 over the surface of the pot, the virtues of the manure 

 being washed in by repeated waterings. I tried a number 

 of pot Roses with it this season, and the result on the 

 growth and quahty of the flowers was very remarkable. 

 The manure seems to impart a richer colour to the 

 flowers, and the foliage is of a deeper green. The 

 flower-stalks will require to be neatly tied to sticks as 

 they advance ; this little attention, with careful water- 

 ing and syringing once a-day, is all that the plants re- 

 quire to reward the cultivator with abundant trusses of 

 gorgeous blooms. 



It is unnecessary for me to give a list of Roses, as this 

 has been done by some of your contributors who know 

 far more about them than I do ; but I may venture to 

 name a few that I have found well adapted for pot-cul- 

 ture. Hybrid Perpetuals and Teas are the most desirable, 

 but some of the Hybrid Chinas and Bourbons are excel- 

 lent for pot-culture. Charles Lawson is one of the best ; 

 Coupe d'Hebe and Paul Ricaut are also good. Amongst 

 the Teas it is not difficult to make a selection, good 

 varieties for pot-culture are numerous — Adam, Belle 

 Lyonnaise, Madame Falcot, Madame Margottin, Marechal 

 Niel (this splendid climbing variety should be worked on 

 the Briar, and grown as a standard or half-standard ; the 

 blooms are drooping, and should be viewed from beneath), 

 Madame Willermoz, Niphetos, President, and Souvenir 

 cTun Ami. Of Hybrid Perpetuals there are many which 

 I have no doubt may be named besides those which I 

 shall enumerate, but the following may be depended upon 

 No. 1250.— Vol. XL VIII., Old Series. 



