i guess it depends where you live up north if still really cold at night and your grow house doesnt sound like its sealed if its mesh so it wont trap the heat from the day like a coldframe/greenhouse/cloche are meant to.Just wondering about temperature differences, particularly at night. In the morning I put mine out in a sort of grow house thing (not as big as a green house & made of a plastic mesh) as it faces south but bring them in overnight in case night temps are a bit low for them.
Is it safe to leave them out overnight yet or is it better to wait another few weeks until night temps pick up a bit?
mine are staying inside until the nights are sweaty hot