As your seedlings grow start widening the slits in the covers, once a week or so make the slits a little bit bigger, eventually you'll have more open areas than covered and you'll be able to transplant the seedlings into the garden because they are completely hardened off. I have put in seedlings that barely had their first set of true leaves and they thrived in the ground.
Your seedlings are already used to the cold.....they were "born" in it. Hardening off gets them used to increased sunshine, fresh air and breezes.
Entered by Trudi_d
GardenWeb Home Page | Forums | Forum