This calculator will be used to determine the percent growth potential of cool and warm-season turf.
As mentioned by Pace Turf the growth potential model was created to explain a myriad of ways in which weather impacts turf growth. The model considers turf growth to be good when the growth potential (GP) is between 50% and 100% (the best possible growth occurs at a GP of 100%). However, when weather conditions are either too hot or too cold for optimal turf growth, the GP falls below 50%, and turf becomes progressively more stressed. When the GP falls to 10% or lower, growth is extremely limited. The optimum temperature for cool season turf is 67.5F, and for warm season turf is 87.5F.