Posted: 06/05/2015 at 22:40
I think this is much more difficult than it looks. You could get loads of weeds, which will out compete your young seedlings. Are you going to let them grow and then kill them off with weedkiller, before you spread your seed?
I have gradually developed a wildflower plot with small plants such as primroses and cowslips... bulbs such as fritillaries (pre grown in pots as well) small narcissi, orchids, anenomes, daisies ( which do seed around very easily. All of this into an established lawn, which grows poorly and is only mown at the end of the summer. First up are snowdrops, planted in the green. I intend to add camasseias next.
Don't expect overnight success. I have taken 10 years plus so far.
Good luck either way.