This decision depends on the type of grass, but most grass grows the fastest and has the highest feed value when grazed between 3 and 8 inches in height.
If grazed shorter than 3 inches, it will take longer for grass to regrow because it has to replenish its photosynthetic leaf area before more rapid growth can begin.
If you wait for it to grow beyond 8 to 10 inches, shading of lower leaves and increased fiber in the stem will reduce growth rate and quality.
