These photos were taken at a local park for which the city council is responsible. The first one shows the grass in an area looked after by this city council, where the grass is cut once a month in line with the city's guidelines. The second photo is an adjacent section that we look after, cutting the grass once a week.
I know I have posted photos of this park previously but the difference in the condition of the grass was so clear yesterday that I just had to post these for you.
The grass is the same, whatever grows naturally, and the only difference in maintenance is the frequency of mowing.
The most important aspect of looking after grass is mowing it.