 And every plant needs it, but in the right amount. The last letter in lawn stands for nutrients, which ZAMZO's lawn food and ZAMZO's Humigreen are designed to supply while at the same time improving the soil. So the answer to the question, what can I do about my lawn, is simple. Apply another bag or two of ZAMZO's Humigreen. Break up any hard spots where water can't penetrate with ZAMZO's Pen-A-Turf and water deeply and infrequently. So if you want a great looking lawn, even in the heat of summer, there's only one place to go. ZAMZO's.