HARDINESS MAP | 
_ These zones are based on average annual minimum 
_ temperatures as listed by the U.S. Weather Bureau - 
for the years 1895-1935 and po in the Atlas 
of American Agriculture, UV. 
0. A. Washington, 1936 . 

HOW TO USE THIS MAP 
From it determine what zone you are in. Every item carrying your zone 
number or a smaller number should joe hardy with you. If you want to 
gamble on those rated one zone sjeater, there is at least a chance for 
SUCCESS, but two zones greater will pro bably be hopeless. 
For full explanation of the entire system see inside of front cover. 
24 2.) 
