Basically - what I meant was - all plots will get weeds. You want time yourmowing - so that the weeds have expended all their energies and start to make seeds, then mow and many of the weeds will not be able to recover and compete with a vigorously growing clover plot.

You don't want to wait until the weed seeds drop before you mow -

The plot in the picture isn't a 100% pure clover stand - but it grows about 6-10" tall and is a major producer of white clovers. I don't treat our clovers with chemicals, because we rotate plots every three years anyhow - and most places - we get good weed control with mowing alone for at least 3 years.

FH