So I'm trying to grow some eggplant and collard greens as well as Carnations the seeds have already popped a root out after about 4 days now I'm not sure if that is still too soon to move other to soil or not.

Also possibly not a good thing to use but I bought some Peat Moss I was curious if they would grow in?

What size pot would be fine for a single eggplant and Collard green I can't sadly plant them in the ground due to a big problem with locust so I've been using my porch to grow tomatoes on.

By the way I'm in Southwest Florida if that helps.

Hopefully your seeds are in little pots, not just lying around someplace. Don't transplant them until they have a couple adult leaves. For an eggplant, you need at least 5 gallons. The Collards need their own pot or you will need a bigger pot for both of them.

I forgot to mention that I was using the Ziploc bag method with a paper towel, the collard greens have baby leafs just a bit small then a pea, the plant it's self is I think a little bit short then 1 inch.

Will they be able to managed in Peat Moss or is their something I should've bought rather then peat moss was pretty surprised that an 85lb bag of Peat moss was only $12 at Lowes.

All I do know is I'm out of 2.5 gal pots because it appears more seeds germinated then I thought would, but I guess if all of them make it I think the guy and his wife next door might like me even more...

I gotta go back to Lowes next week anyways so I'll pick up a few 5 gal pots maybe I'll just buy 5 gal fabric bags they're cheaper.

If you are germinating on paper towers, you have to carefully pluck them off as soon as you see a hint of a root. If the roots develop too much, the tiny important roots will be rooted in you paper towerls. If that happens, plant a piece of paper towel too.

And when you do plant them, use potting soil. Peat moss won't work - it is a soil additive, usually used to raised the acidity of garden soil.