314 THE GARDENER. [July 



\ lb. First, thoroughly mix the lime and sulphur together, then add 

 sufficient water to render the mixture rather thinner than paint ; boil 

 for an hour, then add the tobacco liquor when nearly cold, and paint 

 the Roses over with it after being pruned, and before they start into 

 growth. Should any maggots survive this, they must be picked off 

 as soon as discovered, and on no account be allowed to gain a footing 

 on the plants. 



Green-fly is another pest, but soon overcome by an occasional fumi- 

 gation. They are easily kept under, but if allowed to spread, will 

 seriously affect the plants. 



General Attention. — I have already stated that Roses love a rich diet 

 when in a healthy growing state. A little weak guano-water will 

 stimulate a healthy development of foliage, and as the wood makes 

 growth, it can be exchanged for some dry cow-dung placed on the sur- 

 face of the pots, and the water poured over it. Water, into which has 

 been placed a small portion of soot, is a good thing to give the plants, 

 and with this administered copiously, and air admitted plentifully, 

 even in damp days, rather than being content with a close atmosphere, 

 which creates mildew, and predisposes the plants to be affected by 

 green-fly, the Roses can scarcely help flourishing well. 



Hard forcing should be avoided, as being detrimental to the produc- 

 tion of well-finished blooms. Should occasion arise for some flowers 

 being urgently required, select those plants whose buds are well 

 swollen, plunge them into a bottom-heat of some 70° or 80°, with a 

 temperature of about 60°, and with air freely admitted during the day. 

 Allow the plants to continue there until the most forward buds begin 

 to expand, when they can be removed to a genial and sunny position 

 in a warm conservatory : here the process of expanding can be com- 

 pleted, and the plants will retain their flowers much longer than if per- 

 mitted to unfold them in the forcing-house. 



Summer Treatment. — As soon as the plants have done flowering, 

 plunge them in some suitable material in a sheltered position, where 

 they have the advantage of the sun at least half the day, and secure 

 perfect drainage by standing the pots on pieces of slate. Cinder ashes 

 will be found to be a good plunging material. Stake all straggling 

 growths, so as to secure them from injury, and supply water moder- 

 ately, but constantly, as required ; pinch out flower-buds as they 

 appear, and be watchful for mildew and green-fly, preventing the spread 

 of the former by first syringing the plants with water overhead, and 

 then dusting them with sulphur; and getting rid of the latter by 

 syringing, and then applying Pooley's tobacco-powder. 



Should the plants be allowed to remain here until the winter sets 

 in, additional covering at the roots will be required to protect them 



