Even, if like most gardeners, you are content if your lawn grows reasonably well and is not too overrun with weeds. If you want to go further and achieve the perfection of a velvety smooth, immaculate lawn, you will need to put in a great deal of time and effort. Most weed problems arise from too close mowing or scalping the lawn. Weed infestation will also occur where grass is struggling under shade from trees or the variety of turf does not suit the climate. Never remove more than one-third of the green leaf blade at any one cutting.
Short tops tend to have sparse root systems with diminished food reserves.
Hard mowing removes part of the ability of grass to make sugars and will severely drain food reserves. If there are no food reserves the grass will be weakened. It is better to water heavily and less often. Heavy, infrequent watering encourages deep rooting of grasses that are better able to withstand drought. Grass that is watered heavily every week or ten days will be much stronger and healthier than grass that is given a daily sprinkle.