How long will it be before you move them to the cold frame?
Are you fertilizing?
Bob

I would estimate 1-2 weeks, our weather seems to be moderating now so the cold frames ought to work.
I've been using miracle gro, 1/3rd teaspoon to just less than a queart of water

Here is just one opinion: Leave them. Don't "transplant shock" them twice in such a short period of time. I left my fall-planted winter seedlings (petunias, snaps, and rose seedlings) in trays a long time this winter and just planted them in the ground 2 weeks ago.

Go to the post "when to fertilize". Go straight to the link Art provided. You will see the fertilize requirements for seedlings at different ages. Correct the fertilizer to what is stated in his link. That will control the growth rate a bit while in the trays.
A quick way to get a real close PPM for 1 tablespoon of your water soluble fertilize in one gallon of water is a simple calculation with the number by 3750.
Example: If your fertilizer is 20-10-10 and you want to know the PPM per tablespoon of Nitrogen (20).
DO: 20% x 3750 = 750 ppm per tablespoon per gallon of water.
Calculate the desired PPM from there.
Good Luck,
Bob

This post was edited by bugbite on Sat, Mar 2, 13 at 15:20