[noelwelsh]

^This (which is the same thing both the original article and the RHS article said). Grass will out compete wild flowers if the fertility of the soil is too high. Either:

- get rid of the grass

- mow it very short

and then plant wild flowers. Just throwing seeds onto the lawn will do nothing.

To get rid of grass either:

- dig it out (easy in the right soil; very hard in clay which is a lot of the UK)

- cover it with cardboard, cover the cardboard with soil, and plant on top.

I'm currently converting our front lawn to wild flowers. Luckily we don't have clay so I'm able to dig out the grass.