fogautharnre® 
Tororits 
D1 
Rt 
B Ariantic 
THE LIMITS OF THE 
AVERAGE ANNUAL MINIMUM 
TEMPERATURES FOR EACH ZONE 
Zone! {nm Northern Canada 
g 2 : 4 Zone 2-50° to -35 
HARDINESS MAP . Zone 3 -35° to -20° 
a : : > ; Zone 4 ~20° to -10° GEES 
These zones are based on average annual minimum aX. Zone 5-!0° to — 5° eae 
temperatures as listed by the U. S, Weather Bureau PIS Peek Zone 6 -5° to +5° BES 
for the years 1895-1935 and published in the Atlas We: Zone? 5° to 10° 
of America riculture, U.S.D, A.,Washington, 1936 5 cattery Zone 8 10° to 
8 2 me Zone 9 20° te 3 
: Zone 10 30° to 
HOW TO USE THIS MAP 
From it determine what zone you are in. Every item 
carrying your zone number or asmaller number should 
be hardy with you. If you want to gamble on those rated 
one zone greater, there is at least a chance for success 
but two zones greater will probably be hopeless. 
For full explanation of the entire system see Page 2. 
