PRACTICAL PLANT PROPAGATION 



Fig. 19. Dahlia cuttings. Such shoots make excellent material for cuttings, each 



one besides being of the proper length is also provided with a heel or "meat" at 



the base. Heel cuttings are thought to produce better tubers 



In the Summer the cuttings may best be rooted in coldframes 

 prepared much like the propagating benches in the greenhouse. 

 Cheesecloth screens should also be erected over the frames. Care 

 must be taken that the cuttings never dry out and the ventilation 

 must be perfect. Damping-off is sure to result if the conditions 

 are stuffy and moist. (See page 65.) 



