48 



HOETICtTLTTJEAL MAXUAL. 



fastened down before covering with earth the spring of the 

 branch and wind are apt to draw it gradually from its 

 position before rooting. Very mauy trees and shrubs can 

 be layered in this way, but some of them, such as cherry, 

 plum, and birch, wUl require two or three years. The 

 layer being attached to the mother plant is able to retain 

 life and growth while the covered and injured part is 

 getting ready to emit roots. In the South the rose and 

 other shrubs are often layered in the air in pots, as shown 

 at Fig. 19. 



Fig. 19.— Layering in divided pots. (After Bailey.) 



If young, excitable wood is used the twisted shoot will 

 soon fill the pot with roots. The divided flower-pots 

 shown are now manufactured. 



53. Spring Layering, — In spring layering a whole cane 

 of grape or limb of a shrub is laid down in a trench as 

 shown in Fig. 20. After pegging down in the trench the 

 limb or vine is left exposed to the air until the buds at the 

 nodes start an upward growth of three or four inches. 

 The shoots are then banked up gently and as growth 



