Posted: 07/04/2015 at 21:32
Apart from yellow rattle I haven't successfully started plants from seed into grass. I think they need to be bigger than plugs when they go in as well unless your soil is kinder than mine. A few things have successfully seeded themselves but for the enormous amount of seed set the increase in plants isn't huge. Malva moschata Daucus carota and Centaurea nigra have done best in spreading by seed.