9 6 4 



THE BOOK OF GARDENING. 



Fig. 626.— Whip- or Tongue-Grafting. 



should be of equal thickness, 

 shape like a wedge, and the scion 

 split or cut up in such a way as to 

 fit exactly on the top of the stock. 

 Great care must be taken to see that 

 the opening in the scion does not 

 exceed the length of the wedge. This 

 method of grafting generally requires 

 young growing wood. When bound 

 together, care must be taken not to 

 compress the outer bark. This method 

 is widely adopted in the propagation 

 •of Camellias, Rhododendrons, &c, and 

 wjaen dwarf-flowering plants are required. 



■ Wedge-Grafting is carried out on 

 the same principle as saddle - grafting 

 •except that the cut is reversed. 



Grafting by Approach is the most 

 natural method ; indeed, it has been 

 found under natural conditions. It was 

 very much used about the middle of 

 the present century, and is still in 



and a small tongue must 

 afterwards be removed 

 (see /). If the other is 

 treated in the same way, 

 the cuts will fit, and 

 the two barks will thus 

 be placed in contact 

 with one another, and 

 will soon be united. If 

 in some cases the stock 

 has a larger diameter, 

 the scion can be put 

 on one end of it, and 

 the two barks will soon 

 be joined. Tying is 

 necessary to fix parts 

 together, and clay and 

 grafting-wax are often 

 used to prevent air or 

 sun from reaching the 

 cuts. 



Saddle - Grafting. — 



For this method (shown 



in Figs. 627 and 628) 



the stock and scion 



The stock must be cut to 



Figs. 1 627 and 628. — 

 Saddle-Grafting. 



