Posted: 18/09/2015 at 19:50
Dig out the plants and dig over the beds removing any stray roots. Rake the beds level. Tread the beds down with your feet, topping up with some topsoil if necessary. Rake them over again, tread them again, topup again, rake them again. You want them to be just proud of the grass and no more. Sow your grass seed and keep well watered if necessary.