I don't know woofie.
Straight vermiculite gave impressive germination I thought. But it has no nutes. Seedlings always sprout and grow at their own rate, some faster and some slower. After some get true leaves they should probably be fed. At the same time, some in the container still only have seed leaves. But Jonna said to keep the lid on not to water... so the big guys aren't getting fed yet...
In potting mix, most have at least an initial charge. And once true leaves appear, you can start feeding them. Potting up, root disturbance can give little setbacks. Seeds started in cells can grow undisturbed for a while. I'm thinking potting mix with a thicker layer of vermiculite on top might be a good happy medium. The vermiculite might enhance germination, then I'd remove lid, let them grow, feed when time, etc.
Just a thought, something I might try out.
Karen
