138 THE MODERN PEACH PRUNER. 



There is no reason why Apricots and Plums 

 should not form handsome spiral cordons. Cherries 

 might produce too much wood. 



For the back wall of any lean-to no method 

 equals the diagonal cordon. If the house is low, 

 say about 9 feet high, then no very strong trees 

 should be thus trained, and those of moderate 

 growth would require the double or triple cordon. 

 For houses with 1 feet of back wall single cor- 

 dons of moderately vigorous kinds would suit. 

 Twelve or thirteen feet of back wall is the best 

 height for single cordons. They will not be long- 

 in reaching the top, and when there there is no 

 trouble in keeping them close. Very strong sorts, 

 such as the Stanwick, may be double cordons on 

 such a wall ; but there is no doubt that the single 

 cordon is the easier to form. 



The distance between the trees, counting from stem 

 to stem, varies according to the style of treatment. 

 If flat cordons, with the shoots rather closely kept, 

 be decided on, then 12 inches from stem to stem 

 will suffice, and there is no practical difficulty in 

 keeping the spurs and shoots within these limits, 

 as the amateurs, now rapidly increasing in number, 

 who have adopted this style, will testify. 



Trees grow naturally towards the sunlight, and 

 thus produce, if allowed, numerous forerights. 

 Out of doors we should soon lose the benefit of 



