OUTDOOR ROSE GROWING 



SEEDS 



In order to secure established varieties, seeds are 

 used only in special cases, because they can only be 

 relied upon to reproduce plants of their own kind 

 when they are taken from original species. Seeds of 

 hybrids are useless for this end, as their seedlings do 

 not conform to the parent stock. In other words, 

 hybrids do not come true from seeds, and their seeds 

 are only useful for new varieties. ' ' Experiments with 

 Plants," by Osterhout, goes into the scientific treat- 

 ment of seeds. 



LAYERING 



Many plants and some roses increase by layering, 

 that is, throwing out a branch which becomes rooted 

 and in turn sends out its branches to root themselves 

 and carry out nature's work of increase. Layering 

 is not practised to any great extent, as it is a longer 

 process than the others and requires not only more 

 time to accomplish results, but also more space either 

 in greenhouse or nursery. 



Layering is now only used for some varieties which 

 do not root well from cuttings. Ellwanger cites 

 Persian Yellow as one of these. 



It is a simple and easy operation, and is accom- 

 plished by bending down a rose cane of a growing 

 plant, scientifically notching it with a knife (tech- 

 nically known as tongueing), and then putting the 

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