I'm not too concerened about weeds in the lawn...that dandelion was in OUR lawn! DH doesn't prefer weeds in the grass, but to me, if it's green, it works. I don't think I'd put a flower mixture in it though-unless I decided there was a patch I didn't want to mow and figured to make it a wildflower garden! I know someone that tried to mulch the whole lawn (granted, it wasn't big) so they didn't need to mow it.