In article . com, boing
writes

Can anyone help ?

As others have said, the quality of your lawn depends upon the attention
you give to it. The idea of a 100 percent fine grass lawn is an illusion
put about mostly by vendors of lawn care products, and is seldom
achieved even by professional gardeners. If you keep the grass to a
regular height, you will finish up with mostly grass plus a sprinkling
of lawn tolerant wild flowers. Twice weekly mowing is only necessary in
the peak growing times of spring and autumn, at other times once a week
or less is enough. Our lawn contains some daisies, buttercups, clover,
moss, self-heal and dead nettle, but not enough to prevent its use for
family recreation and leisure.
--
Alan & Joan Gould - North Lincs.