y 



CHAPTER XXIII. 



PROPAGATION - OF PLANTS BY SEEDS AND CUTTINGS. 



jln order to keep up a supply of plants and to mul- 

 tiply individuals of merit, some method of propagation 

 must be employed, the one selected being that best 

 suited to the particular species or variety^ Many of our 

 plants are known as annuals, from the fact that they will 

 grow and mature seed in one season, after which they 

 die. As a rule, such plants are reproduced the follow- 

 ing year from the seeds, which are freely produced. 



The methods of propagation known as grafting, 

 b udding" and la yering, are also sometimes employed in 

 growing greenliouse plants, but a more commo n way is 

 b y means of sect ions of the plant s, known as cuttings, 

 which are removed an d subje cted" to such influences a s 

 will induce thj mito throw out roots. Another method 

 of division, used wTth~~plaTrt^~1lTai sucker freely, is the 

 division of the roots, the plants being separated into two 

 or more portions, each consisting of a piece of root sur- 

 mounted by a stem, or at least bearing a bud. When- 

 ever it can be used, this is one of the surest methods of 

 multiplying plants, and some species can be increased 

 very rapidly when other methods fail, or are, for some 

 reason, unsatisfactory. 



GROWING OF TLANTS FROM SEEDS. 



Not only are our annual plants readily increased 

 from seeds, but the method is also employed in multi- 

 plying many of our biennials and perennials, and is our 

 only means, except in case of sports developed by bud 



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