Soil Temp & Moisture Scales

		  
Temp °F Temperature Status Moisture cb Soil Status
< 20   Winter Kill Possible   0-10   Saturated Soil  
< 33   Soil Frozen   10-25   Adequately Wet  
33-40   Lawn Growth Ceased   26-60   Irrigation Desired  
40-50   Root Growth Only   61-100   Irrigation Needed  
50-65   Optimal Root Growth   100+   Dangerously Dry  
60-75   Optimal Shoot Growth      
75-90   Shoot Growth Only      
90+   Lawn Growth Ceased