Well, I top-dressed and re-seeded at the same time, so the seeds were kind of buried in the top dressing. I was worried that had killed them but it’s all coming up now. It’s thickening out the main grass nicely but I didn’t seed very densely in the patches so they may take a while to disappear.
Question is, when to mow? The existing grass is pretty tall, most of the seedlings are 2-3″ high. Doesn’t look strong enough to walk on with the mower.