maple soil

Hey All, I got my shovel and scooped up a few Maple tree saplings the other day from the yard and I was hoping to get some advice on what to do with them. I know the pots aren't traditional bonsai pots and all i had at the time was potting soil.Can anyone tell me what I should do next to get...

I have posted about this maple this week. I collected it from the woods. I want to know peoples suggestions for soil once it stabilizes enough to be repotted. I don't know the specific species. I believe it is Acer Rubrum the Red Maple. Others have suggested the "Freeman" Maple hybrid and the...