Gradually raise the height of cut in late spring to 3 inches. After September 1, begin to gradually lower the height of cut back to 1.5 to 2 inches. Leave the clippings on the lawn after it is cut. There is no benefit to removing the clippings. They do not contribute to thatch accumulation.
Clippings also contribute to organic matter accumulation and increase earthworm activity.
Also, there may be suppression of some lawn diseases when grass clippings are left on the lawn. Only remove grass clippings when infrequent mowing has produced large piles of clippings, which can smother the grass. Never use grass clippings, that have been treated with pesticides, in the compost bin. Watering Plant drought tolerant grass species and cultivars to reduce water requirements. Fine and tall fescues are drought tolerant and perform better under unirrigated conditions.