once my 1 acre was nice grass.... due to neglect nettles docks and everything else took over.... having a go this year to get it back to grass...... been spraying it over last few weeks with good stuff and everything is dieing off nicely...... soon almost all will be dead...... thought i would hire the biggest walk behind rotovator i can find and turn it all over, then get it flattened and broken up more finely...... then seed it about early september..... does that sound ok as i dont really know what ime doing..