The OE was probably stressed early on which would have stalled growth for a couple of weeks. Not sure if it was a reaction to the miracle grow mix, but it does sound that way from your description.
I'd expect it to be a normal plant when it grows up - just a few weeks behind your others. Just let the rootmass develop - don't let it get too wet.
I'd expect it to be a normal plant when it grows up - just a few weeks behind your others. Just let the rootmass develop - don't let it get too wet.