72 



THE NURSERY-MANUAL 



FIG. 61. Covered layer of viburnum. 



case the covering should 

 be shallow, not exceed- 

 ing 2 to 5 inches. If 

 the shoot is stiff, a 

 stone or sod may be 

 placed on it to hold it 

 down; or a crotched 



stick may be thrust down over it, as in the "pegging down" 

 operation of propagators. 



The strongest plants are usually obtained by taking only 

 one plant from each shoot, and for this purpose the earth 

 should be applied only at one point, preferably over a bud some- 

 where near the middle of the shoot. If the buds are clos3 

 together, all but the strongest one may be cut out. If more 

 plants are desired, however, serpentine layering may be practiced, 

 as shown at A in Fig. 62 (left foreground) . The shoot is bent in 



FIG. 62. Layered shoots. 



an undulating way and from every covered part roots will 

 form and a plant may be obtained. The completely covered 



