1-4 are echinacea seedlings and the rest are not.

Thanks, EM!

I will pull 5, 6 and similar ones out. I didn't plant anything around the echinacea, so these must be weeds.

Hi Dave!
Do you have a Mulberry tree near you? I agree the top four are Echinaceas, the bottom two look like the baby Mulberries I'm constantly pulling out. Kathy

Tasymo, I don't think I have mulberry tree. I am bad with names of trees, but I did some search and it doesn't look like I have mulberry.

I have I think are oak trees. The ones whose seeds have wings and land all over the place. I think these seedlings might be those. They look familiar to me before I even grew coneflower, so I didn't think they were coneflower but since I have planted some coneflowers, I thought I should better check before I pull them out so that I won't accidentally kill what I intend to keep. :)

5 & 6 are elm tree saplings