274 



GARDEN GUIDE 



Ash seed is rather oUy and benefits by being treated to a weak 

 acid bath. 



There are a number of reasons why seeds fail to germinate. They 

 may have been immature when gathered. Pansy seed matures so 

 that some of the seeds are ripe while others are not. Some seeds upon 

 becoming too dry, are killed. Seeds have often been stored while moist 

 and heating has resulted which killed the vital germ of growth; while 

 still other have been injured by insects and fungi before or after ma- 

 turing. 



Cions for Cleft 

 Grafting 



A B 



Cleft grafting 



A, The completed graft. B, Properly waxed. 



The methods of grafting are explained in 



the text on the following pages 



Grafting 



Trees which belong to the same variety or species may be grafted. 

 In other words, a Baldwin Apple may be grafted upon a Baldwin or any 

 other Apple. Sometimes plants of different species but of the same 

 genus may be grafted; other times this is not true. Apples may not 

 usually be grafted upon Pears; yet Quinces (of the genus Cydonia) 

 have Pears (Pyrus) grafted upon them to impart the dwarf habit. We 

 could never expect Cherries on Pear trees, or red Raspberries on 

 Grape vines, for it is only those plants which are very closely related 

 that will allow grafting. 



We have seen, as in the preceding case, that Pears may be kept 

 dwarf by working them upon the Quince stock. We may, likewise, 

 increase the vigor of a variety by grafting it upon a stronger growing 

 species. A familiar example of this is the grafting of certain Roses 



