VEGETABLE GROWING IN SOUTHERN 

 ARIZONA 



By Alfred J. McClatchie. 



INTRODUCTION. 



So much relative to vegetable growing remained to be set- 

 tled by careful experiments, and the requests for information have 

 been so numerous, from visitors and by mail, that it seemed im- 

 portant that systematic experiments be conducted at the Station 

 farm near Phoenix, and a bulletin embodying the results issued. 

 Work along this line was begun during 1898, and is still in pro- 

 gress. The farm, situated as it is about midway between the 

 warmer, dryer region about Yuma, and the cooler valleys of the 

 Verde and the upper Gila, is fairly well located to give results 

 that will be applicable to most of southern Arizona. 



The data upon which this bulletin is based have been drawn 

 not only from our own experiments, but have been obtained from 

 market gardeners, and other vegetable growers in various parts 

 of the Territory. In this connection, the writer, upon behalf of 

 the Station, wishes to thank Lewis Wetzler and E. J. Gleason, 

 Phoenix; Geo. Cobb, Glendale; T. P. Banta, Mesa; C. N. Nich- 

 ols, Thatcher: F. Hubbard, Pima; M. Winsor, Yuma, and all 

 others who have so kindly contributed data from their experience. 



CLIMATIC CONDITIONS. 



Our climatic conditions are so different from those of most of 

 the remainder of the United States that the growing of veget- 

 ables by those without previous experience here is usually attend- 

 ed with many difficulties. However, acquaintance with out 

 peculiar conditions usually enables one to overcome many of the 

 difficulties encountered. 



The climate of southern Arizona is essentially a desert one-. 

 The rainfall being but three to ten inches per year, the air is most 

 of the time too dry for the growth of some plants, even if an 



