CUTTAGE 97 



basis. But the variety proved so much easier to propagate than they 

 had thought that thousands more plants were grown than had been 

 ordered. However, as the demand created by good advertising was 

 greater than had been counted upon, practically all were sold and a 

 big profit made. Reverse cases are perhaps more common. 



139. Influence of climate on cuttings. Climate has a 

 noticeable effect upon the rooting of cuttings. In parts of 

 southern Europe and South America, many plants which 

 can hardly be made to strike root elsewhere readily do 

 so. In some of the Gulf states sweet potato vines may be 



FIG. 87 -STOCK PLANTS OF CROTON 

 New plants are secured largely by Chinese layers from these plants. 



cut in pieces a foot long and thrust into the sand with 

 certainty that they will grow. In Texas hard wood cut- 

 tings of quince and persimmon readily take root. Prob- 

 ably in such cases the condition of the soil also has an 

 influence, but since similar soil in similar condition in 

 northern localities does not produce similar results the 

 credit for success must be given to climate. 



140. Summer propagation of hardy plants in Minnesota and other 

 western states is difficult because of the dry air. S. B. Green suc- 

 cessfully propagated hydrangea, spiraea, barberry, Tartarian honey- 

 suckle, and 11 varieties of roses by stretching burlap over the beds. 

 The strips were not laid horizontally but inclined to the south so the 

 northern edge was at least one foot above the bench, while the 

 southern edge rested directly on the bench. By putting this shade 

 on about nine o'clock and leaving it on till about five the cuttings 



