Moving Seedlings from Inside to Greenhouse
I generally just use my greenhouse to start things a little early but this year I am trying to get a mega start on everything.
I'm pretty sure that the lowest temperature in the greenhouse is around 60 degrees but it does sometimes climb to 90 and 100 (rarely but it does happen). My glazing is a green fiberglass and I have a clear solar pool cover over it so there is not full sun but it's pretty bright out there. I do have a compact florescent flood light out there but it isn't going to cover much area.
We keep the house around 65-70 degrees and my propagation stand is situated over a heating vent so I am sure that area is a little warmer. They are under warm lights (some of them are under warm and cool) in the house about 4-6 inches above the plants.
My question is, how long should I wait before I move seedlings from the house to the greenhouse? Do they need to have their first true leaves or need some sort of hardening off or when they sprout can I just toss them out there?