Kansas State Agricultural College 



EXPERIMENT STATION. Circular No. 13. 



DIVISION OF FORESTRY. 

 CHAS. A. SCOTT, Forester in Charge. 



How to Grow Black Walnuts. 



BY 



CHAS. A. SCOTT. 



Under favorable conditions the Black Walnut is a tree that 

 is easily grown. The seedlings reach a height of from 12 to 

 24 inches the first season, and this height growth is exceeded 

 from year to year during the sapling and pole stages of de- 

 velopment. The nuts should be planted where the trees are 

 to be permanently located for the reason that the seedlings 

 develop a very strong tap root the first season and transplant- 

 ing is impractical. 



THE SEED. 



The nuts mature in October, and they should be gathered 

 soon after they fall from the trees. They should not be 

 hulled as the hull in no way interferes with germination and 

 it protects the kernel from injury by drying. The only treat- 

 ment necessary before planting is to see that the nuts do not 

 dry out, as drying seriously injures their germinating powers. 



Nuts for fall planting keep perfectly in small piles in cool, 

 shaded places. The piles should not be made more than 12 

 or 15 inches in height, on account of danger of the nuts heat- 

 ing if the pile is large. 



For spring planting the nuts should be stratified over winter. 

 They may be stratified in moist sand or leaves in any pro- 

 tected place. In stratifying, a two-inch layer of sand or leaves 

 should alternate with a layer of nuts of the same depth. The 

 pile should be kept moist and allowed to freeze and remain 

 frozen throughout the winter. 



