120 



PEACTICE OF GAEDENIXG. 



getting rid of them is to pick off tlie leaves or fiowers 

 affected, and burn them. 



There are few other deciduous flowering shrubs for 

 which any peculiarity of treatment is necessary, bur. as it 

 has been remarked that many of them require pruning, ii 

 may be well to state the principal of tliose which will bear 

 to be subjected to this operation. Lilacs, currants, and 

 laburnums should never have their shoors shortened, but 

 they may occasionally be thinned out vriih propriety, and 

 all root-suckers should be annually removed, whether they 

 are or are not recraired for propagation, as they are very 

 injurious to the parent plant, and are likewise very tm- 

 sightly. Guelder roses, syringas, Japan quince trees, and 

 spiraeas, will endure almost any degree of pruning, though 

 the latter do not bear so much as the three former. The 

 Japan kerria ^usually called corchortisi must be treated 

 precisely in the same manner as China roses in this respect ; 

 and the various species of cytisus, broom, and berberry, 

 require no pruning, though the latter may be subjected to 

 it if required. Tlie tamarisk and bladder-senna must have 

 their young shoots yearly shortened to eight or ten inches, 

 other^vise they will grow too straggling. All the above 

 may be propagated by layers or suckers, though the com- 

 mon broom can only be increased by seeds ; many others 

 likewise produce seeds, but these are gene]'ally a long time 

 before they vegetate, and rccpaire much attention. 



It has before been remarked, that most shrubs of this 

 description will thrive in any common soil ; but to this 

 rule the numerous splendid species and varieties of azalea 

 are exceptions, as they require a similar soil to rhodo- 

 dendrons, that is, a peaty soil : while the pretty mezereon, 

 which is such a universal favourite, thrives best in a rather 

 light and dry soil. 



The shortlist of loic dc':cduoi'.st/-t£8 which has now been 

 ai^pended includes some of the most beautiful of garden 

 ornaments, and even the smallest place might always con- 

 tain at least two or three of them. The hawthorn tribe, of 

 which there are numerous ether species and varieties, is 

 especially pleasing. It will bear considerable pruniDg : 

 but the plants look best when not subjected to any such 

 treatment. Xone of these trees are particular as to soil. 



