KENTUCKY BLUB GRASS. 85 



northward from these until the lakes are reached. 

 These are the soils that grow hardwood timber, as for 

 instance hard maple, elm, basswood, ash, birch and 

 burr oak. The very highest adaptation for it, there- 

 fore, is found in what were the hardwood timber areas 

 of Kentucky, Missouri, Iowa, Indiana, Illinois, Ohio, 

 New York, Michigan, Wisconsin and Minnesota. It 

 also prevails in the New England and eastern states. 

 While in them the climate is very suitable for growing 

 it, the prevailing soils are such as only to produce q 

 moderate growth. In the southern states and especially 

 on the uplands and mountains blue grass grows freely. 

 But, because of certain soil peculiarities in some of 

 these, it has been stated that it is not so nutritious as 

 on the limestone soils of the central states. On soils 

 in the south that are sandy, the lack of fertility and 

 the summer heat are adverse to high production in blue 

 grass as pasture or as hay. On the moist Pacific slope 

 in Washington and Oregon this grass grows with: much 

 satisfaction where it has been introduced. 



In Canada, blue grass grows in good form in all the 

 timber country from Winnipeg to the Atlantic. Nat- 

 urally infertile soils are against the most abundant pro- 

 duction in much of the soil in the maritime provinces, 

 but in Ontario blue grass grows with as much luxuri- 

 ance as in Kentucky, with the difference, however, thai 

 the season for its growth is shorter than in Kentucky. 

 In the prairie soils between Winnipeg and the moun- 

 tains, blue grass can be grown, but less satisfactorily 

 as Winnipeg is receded from until the Rocky mountains 

 are reached. In this area Russian hrome (Bromus in- 



